{"title":"Short Blocks","description":"\u003cp\u003eFind IAG Performance assembled Short Blocks for your Subaru in the Short Block section of our website. Shop our complete line of manufactured and completely assembled high-performance short block engines that fit your WRX, STI, BRZ, Legacy GT, or Forester XT EJ20, EJ25, and FA20 engines.\u003c\/p\u003e","products":[{"product_id":"iag-600-fa20-dit-subaru-short-block-for-2015-21-wrx-600-bhp","title":"IAG 600 FA20 DIT Subaru Short Block for 2015-21 WRX - 600 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 600 FA20 DIT 2.0L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/YBv1boAi40w?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=YBv1boAi40w\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG FA20 DIT H-Beam Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/02ff9b72-3c14-45d5-a58c-51343e200dce\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eDESIGNED FOR STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 600 Short Block is designed for stock or modified FA20 DIT Subaru WRXs that need a stronger bottom end to support increased cylinder pressures created by additional boost pressure. The IAG 600 short block features IAG Spec H-Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by larger turbochargers or increased boost which the OEM rods and pistons found in the stock short blocks cannot support reliably. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Crank\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block starts with brand new FA20 DIT Subaru 2.0L, 86mm stock bore engine case halves as standard. The case haves are carefully bored and honed to 86.25mm then measured and assembled using a new 2015+ Subaru 2.0L FA20 crankshaft, which is matched to ACL or King race main bearings. The IAG 600 Short Block features IAG Spec H-Beam Connecting Rods with ARP2000 rod bolts, along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally, IAG Spec JE FSR 86.25mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Case Half\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/84286cb5-30a3-44cd-90e7-f6ebe6c4769c\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and reliability. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 600 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec JE FSR Pistons for FA20 DIT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/2653f98b-40a1-4f29-ae20-2f3634244191\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block features IAG Spec JE FSR 86.25mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .866\" x 2.250\" x .150\" wall carbon steel wrist pins with Tru Arc locks. \u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 600 Short Block has a power output rating of 600 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (3) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 DIT Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066705031386,"sku":"IAG-ENG-S600","price":5249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apigsulmw__08289.1649418763.1280.1280__72167.1678312186.1280.1280.jpg?v=1781530345"},{"product_id":"iag-800-fa20-dit-subaru-closed-deck-short-block-for-2015-21-wrx-800-bhp","title":"IAG 800 FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX - 800 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 800 FA20 DIT 2.0L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/OB5ilTR4beE?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=OB5ilTR4beE\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 800 Short Block FA20 Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/02ff9b72-3c14-45d5-a58c-51343e200dce\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eGET MORE OUT OF YOUR FA20 WRX\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 Short Block is designed for modified FA20 DIT Subaru WRXs that need a stronger short block to support increased cylinder pressures created by additional boost pressure and larger turbochargers. The IAG 800 short block features our proprietary closed-deck cylinder support system to strengthen the OEM FA20 cylinder walls. The short block is fitted with IAG Spec H-Beam forged connecting rods. Head gasket sealing is handled with the addition of an o-ring and 1\/2\" head studs for additional compression of the head gasket. These upgrades are ideal for those seeking to get the most out of their full bolt-on and upgraded turbo WRXs. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Block FA20 Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG Closed Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined with O-ring receiver grooves around the bore surface as well as drilled and tapped to accept 1\/2\" head studs that greatly reduce head gasket failure during high cylinder pressure scenarios. Next, the short block is Deck Plate bored and honed that to 86.25mm on our in-house Sunnen SV-30 cylinder hone. IAG's in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2020 Subaru 2.0L WRX crankshaft that is matched to ACL or King main bearings. IAG-Spec H-Beam rods with ARP2000 rod bolts are utilized, along with King or ACL rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, IAG-Spec 86.25mm forged pistons are installed, along with an OEM oil plug finishing off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Block FA20 WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/2ec62465-d80c-48ac-ac4e-3392dfe8fff9\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and reliability. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 800 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck WRX Short Block Pistons and Rings\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/428b9e67-9eeb-412e-9aec-0e8d5eb0c98f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 800 Short Block features IAG Spec JE FSR 86.25mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .866\" x 2.250\" x .230\" wall 9310 nickel carbon steel wrist pins with Tru Arc locks. \u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 800 Short Block has a power output rating of 800 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (3) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 DIT Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066703884506,"sku":"IAG-ENG-S800","price":6499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apilmshly__53890.1649426578.1280.1280__09303.1678312623.1280.1280.jpg?v=1781530347"},{"product_id":"iag-1000-fa20-dit-subaru-closed-deck-short-block-for-2015-21-wrx-1000-bhp","title":"IAG 1000 FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX - 1000 BHP","description":"\u003ch2 style=\"text-align: center;\"\u003eIAG 1000 FA20 DIT SUBARU CLOSED DECK SHORT BLOCK FOR 2015-21 WRX - 1000 BHP\u003c\/h2\u003e\n\u003chr style=\"border: none; border-top: 1px solid #e0e0e0; margin: 24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position: relative; width: 100%; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=AMytJ0EHOZo\u0026amp;version=3\u0026amp;rel=0\" loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border: none; border-top: 1px solid #e0e0e0; margin: 24px 0;\"\u003e\n\u003cp\u003e\u003cimg alt=\"IAG FA20F Subaru Closed Deck Short Block for 2015-21 WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/f422541c-2ba4-4a9c-8d17-1b04a72d69d6\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eSERIOUS POWER. REAL-WORLD DURABILITY\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe IAG 1000 FA20 DIT Subaru Closed Deck Short Block is built for enthusiasts who want big power without sacrificing reliability. Designed to support up to 1000 BHP, this combination delivers the strength needed for serious boost while maintaining the durability required for real street use. Inside, you’ll find IAG-Spec H-Beam forged connecting rods paired with IAG-Spec JE pistons featuring an electroless nickel-plated coating and H13 tool steel wrist pins. The case is precision-machined to accept our proven Fire-Lock head gasket system and 14mm head studs (sold separately). Each IAG 1000 short block is hand-assembled using ACL or King rod and main bearings for consistent, reliable performance, whether you're street driving, drag racing, or out on the track.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"IAG FA20F Closed Deck Case Half Machining\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/68b96b05-57d8-4bd1-9a0f-160af50a931a\/-\/format\/auto\/-\/quality\/best\/\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCLOSED DECK FOR SERIOUS STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe IAG 1000 FA20 DIT Subaru Closed Deck Short Block uses a precision-machined closed deck conversion to significantly reinforce the factory Subaru case halves. By adding structural support around the tops of the cylinder walls, the design limits cylinder wall movement and reduces the potential for cracking in high-stress areas like the case bolt reliefs. The assembled case halves are machined in our Haas VF-4SS CNC mill to accept IAG Closed Deck inserts, then the block is heated while the inserts are cryogenically cooled so they can be pressed into place for a secure mechanical fit. Once installed, the deck surface is machined to a smooth, mirror finish. Each insert is designed with built-in coolant passages so proper flow to the deck surface is maintained, meaning you get the added strength of a closed deck without sacrificing cooling performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"IAG FA20F 1000 Series Closed Deck Short Block Parts\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/42ea0511-7a81-4121-a254-55d7e27c68a3\/-\/format\/auto\/-\/quality\/best\/\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe IAG 1000 FA20 DIT Subaru Closed Deck Short Block for the 2015–2021 WRX begins with brand-new Subaru FA20F engine case halves that are precision-machined in our Haas VF-4SS CNC mill to accept IAG Closed Deck inserts, converting the factory open deck into a much stronger closed deck foundation built to handle serious cylinder pressure. Once the inserts are installed, deck plates are bolted on, and the block is bored and honed to 86.25mm using our Sunnen cylinder hone, allowing us to dial in exact piston-to-wall clearances for proper ring seal, quiet operation, and reduced oil consumption. While it’s on the mill, we machine a groove at the top of each cylinder for the Fire-Lock head gasket system and drill the head bolt holes to accept 14mm head studs. From there, the case halves are assembled with a brand-new Subaru FA20 DIT crankshaft, IAG-Spec H-Beam forged connecting rods with ARP 625+ rod bolts, and ACL or King Race rod and main bearings. Finally, every short block is balanced, blueprinted, and sealed with new OEM main and case bolts and factory sealant, delivering a rock-solid foundation built to handle up to 1000 BHP.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"IAG FA20F Closed Deck Fire-Lock System\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/b4d709a6-923f-4123-9754-45defd90ee96\/-\/format\/auto\/-\/quality\/best\/\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eIAG FIRE-LOCK SYSTEM\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe IAG 1000 FA20F Subaru Closed Deck Short Block features our proprietary “Fire-Lock” Head Gasket System. This system has been proven in our record-setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated combustion sealing from the oil and coolant sealing functions of a traditional head gasket. Each cylinder is precision-machined with a counterbore step at the top to accept the Fire-Lock ring that mechanically locks into place and creates an extremely secure combustion seal. The independent gasket bodies handle sealing the oil and coolant passages, keeping fluids out of the combustion chamber where they don’t belong. The entire assembly is secured using 14mm head studs for maximum clamping force (Fire-Lock Gaskets and 14mm Head Studs sold separately).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"IAG-Spec FA20F JE Forged Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/1da7207e-c072-4886-b49c-c9f42d051204\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePISTONS DESIGNED WITH POWER IN MIND\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe pistons in the IAG 1000 FA20 DIT Subaru Closed Deck Short Block are built to handle the demands of serious performance use. Developed in partnership with JE, these IAG-Spec pistons are manufactured from 2618 alloy and feature an electroless nickel-plated coating for added durability. Extra-thick ring lands help resist collapse under high cylinder pressure, lateral gas ports to help promote piston ring seal under higher boost, while upgraded .250\" wall H13 tool steel offset wrist pins are designed to support power levels up to 1000 BHP without bending or failure. Each piston also includes JE’s Perfect Skirt coating to promote smooth operation and long-term reliability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position: relative; width: 100%; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003ePower:The IAG 1000 Short Block has a power output rating of 1000 BHP\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (3) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 DIT Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru FA20 engines. This solution is loosely derived from diesel technology, where a counterbore step is machined around each cylinder bore, allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone-based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assures maximum sealing for a Subaru FA20 turbocharged engine.\u003c\/p\u003e\n\u003cp\u003eThe IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.\u003c\/p\u003e\n\u003cp\u003eThe gaskets are sold in pairs with four Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003eOIL PICKUP\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eOil pickups are a critical failure point in the FA20F engines, especially when pushing your Subaru to its limits. The factory pickup can lead to severe engine damage or catastrophic failure due to the screen dislodging under high oil pressure, allowing debris and even fragments of the screen itself to enter the engine. Subaru’s design is also notorious for restricting oil flow, creating the potential for oil starvation. The IAG Performance Oil Pickup for the 2015-2021 FA20F WRX is designed to solve these issues. With an enhanced design that improves oil flow and durability, it offers a dependable solution to the common problems with OEM oil pickups. IAG’s Oil Pickup will keep your engine performing at its best, no matter how hard you drive.\u003c\/p\u003e\n\u003cp\u003eWe’re confident that the IAG Performance Oil Pickups are the best available on the market, and we’ve got the data to prove it. We’ve rigorously tested our pickups and compared them against the OEM Subaru pickup, along with some of the most popular competitive products available. Click here to see the comprehensive test results and find out why IAG Performance stands out from the competition.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48062502994138,"sku":"IAG-ENG-S1020","price":6999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-ENG-S1020-01__56307.1772574331.1280.1280.jpg?v=1781530396"},{"product_id":"iag-600-fa20-subaru-short-block-for-2013-20-brz-fr-s-gt86-10-5-1-compression-ratio-600-bhp","title":"IAG 600 FA20 Subaru Short Block for 2013-20 BRZ \/ FR-S \/ GT86 (10.5:1 Compression Ratio) - 600 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 600 FA20 FT86\/BRZ 2.0L SUBARU SHORT BLOCK WITH 10.5:1 LOW COMPRESSION\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/6ddYM9Vcru8?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=6ddYM9Vcru8\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Spec H-Beam FA20 Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/02ff9b72-3c14-45d5-a58c-51343e200dce\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eDESIGNED FOR STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 600 Short Block is designed for stock or modified FA20 Subaru BRZs that need a stronger short block to support increased cylinder pressures created by modifications, or aftermarket turbo kits. The IAG 600 short block features IAG Spec H-Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by aftermarket turbochargers or increased boost which the OEM rods and pistons found in the stock short blocks cannot support reliably. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Crank\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block starts with brand new FA20 BRZ\/FT86 2.0L, 86mm stock bore engine case halves as standard. The case haves are carefullly bored and honed to 86.1mm then measured and assembled using a new 2015+ Subaru 2.0L FA20 crankshaft, which is matched to ACL or King race main bearings. The IAG 600 Short Block features IAG Spec H-Beam Connecting Rods with ARP2000 rod bolts, along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally, IAG Spec JE FSR 86.1mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA Engine Case\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/84286cb5-30a3-44cd-90e7-f6ebe6c4769c\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and relibility. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 600 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec JE FSR Low Compression FA20 Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/aa61aa01-cb70-4b55-ae9f-c48dcaff9458\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block features IAG Spec JE FSR 86.1mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250\" x .150\" wall carbon steel wrist pins with Tru Arc locks. Note this block features lower 10.5:1 compression ratio which is ideal for higher boost applications up to the power rating of the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 600 Short Block has a power output rating of 600 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (2) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066704507098,"sku":"IAG-ENG-S686L","price":5249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apitayidt__35037.1633558675.1280.1280__20869.1678306496.1280.1280.jpg?v=1781530349"},{"product_id":"iag-600-fa20-short-block-for-2013-20-brz-fr-s-gt-86-standard-compression-12-5-1-600-bhp","title":"IAG 600 FA20 Short Block For 2013-20 BRZ \/ FR-S \/ GT-86 (Standard Compression 12.5:1) - 600 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 600 FA20 FT86\/BRZ 2.0L SUBARU SHORT BLOCK WITH 12.5:1 STANDARD COMPRESSION\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/6ddYM9Vcru8?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=6ddYM9Vcru8\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG Spec FA20 Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/02ff9b72-3c14-45d5-a58c-51343e200dce\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eDESIGNED FOR STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 600 Short Block is designed for stock or modified FA20 Subaru BRZs that need a stronger short block to support increased cylinder pressures created by modifications, or aftermarket turbo kits. The IAG 600 short block features IAG Spec H-Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by aftermarket turbochargers or increased boost which the OEM rods and pistons found in the stock short blocks cannot support reliably. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Crank\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block starts with brand new FA20 BRZ\/FT86 2.0L, 86mm stock bore engine case halves as standard. The case haves are carefullly bored and honed to 86.1mm then measured and assembled using a new 2015+ Subaru 2.0L FA20 crankshaft, which is matched to ACL or King race main bearings. The IAG 600 Short Block features IAG Spec H-Beam Connecting Rods with ARP2000 rod bolts, along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally, IAG Spec JE FSR 86.1mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Case \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/84286cb5-30a3-44cd-90e7-f6ebe6c4769c\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and relibility. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 600 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec JE FSR Pistons for FA20\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/12d90c24-83b9-4e4b-b15e-1d1a04007cf3\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 600 Short Block features IAG Spec JE FSR 86.1mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250\" x .150\" wall carbon steel wrist pins with Tru Arc locks. Note this block features standard 12.5:1 compression ratio which is ideal for low boost or stock applications. \u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 600 Short Block has a power output rating of 600 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (2) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066704048346,"sku":"IAG-ENG-S686H","price":5249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/api47crol__36543.1633558530.1280.1280__47845.1678305466.1280.1280.jpg?v=1781530349"},{"product_id":"iag-800-fa20-subaru-closed-deck-short-block-for-2013-20-brz-fr-s-gt86-10-5-1-compression-ratio-800-bhp","title":"IAG 800 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ \/ FR-S \/ GT86 (10.5:1 Compression Ratio) - 800 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 800 FA20 FT86\/BRZ 2.0L SUBARU SHORT BLOCK WITH 10.5:1 LOW COMPRESSION\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/3rKfIKsTcMU?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=3rKfIKsTcMU\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ \" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/1fc11c5e-8460-44b0-aa8e-e254545b4573\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eGET MORE OUT OF YOUR BRZ\/FT86\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 Short Block is designed for modified FA20 Subaru BRZs or FT86s that need a stronger short block to support increased cylinder pressures created by larger aftermarket turbochargers. The IAG 800 short block features our proprietary closed-deck cylinder support system to strengthen the OEM FA20 cylinder walls. The short block is fitted with IAG Spec H-Beam forged connecting rods. Head gasket sealing is handled with the addition of an o-ring and 1\/2\" head studs for additional compression of the head gasket. These upgrades are ideal for those seeking to get the most out of their full bolt-on and upgraded turbo BRZs. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG Closed Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined with O-ring receiver grooves around the bore surface as well as drilled and tapped to accept 1\/2\" head studs that greatly reduce head gasket failure during high cylinder pressure scenarios. Next, the short block is Deck Plate bored and honed that to 86.1mm on our in-house Sunnen SV-30 cylinder hone. IAG's in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2020 Subaru FA20 crankshaft that is matched to ACL or King main bearings. IAG-Spec H-Beam rods with ARP2000 rod bolts are utilized, along with King or ACL rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, IAG-Spec 86.1mm forged pistons are installed, along with an OEM oil plug finishing off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ Low Compression\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/119e4e2f-3e65-42f8-9665-4c28ef06568f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and relibility. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 800 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/e6227523-1eae-4127-a617-a58abe843be2\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 800 Short Block features IAG Spec JE FSR 86.1mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250\" x .210\" wall carbon steel wrist pins with Tru Arc locks. Note: This block features 10.5:1 Lower Compression pistons which are ideal for higher boost and larger turbochargers.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 800 Short Block has a power output rating of 800 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (2) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066704212186,"sku":"IAG-ENG-S886L","price":6499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apibwfoek__10962.1633558696.1280.1280__22530.1678310494.1280.1280.jpg?v=1781530348"},{"product_id":"iag-800-fa20-subaru-closed-deck-short-block-for-2013-20-brz-fr-s-gt86-12-5-1-compression-ratio-800-bhp","title":"IAG 800 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ \/ FR-S \/ GT86 (12.5:1 Compression Ratio) - 800 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 800 FA20 FT86\/BRZ 2.0L SUBARU SHORT BLOCK WITH 12.5:1 STANDARD COMPRESSION\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/3rKfIKsTcMU?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=3rKfIKsTcMU\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/02ff9b72-3c14-45d5-a58c-51343e200dce\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eGET MORE OUT OF YOUR BRZ\/FT86\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 Short Block is designed for modified FA20 Subaru BRZs or FT86s that need a stronger short block to support increased cylinder pressures created by larger aftermarket turbochargers. The IAG 800 short block features our proprietary closed-deck cylinder support system to strengthen the OEM FA20 cylinder walls. The short block is fitted with IAG Spec H-Beam forged connecting rods. Head gasket sealing is handled with the addition of an o-ring and 1\/2\" head studs for additional compression of the head gasket. These upgrades are ideal for those seeking to get the most out of their full bolt-on and upgraded turbo BRZs. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ce319298-6210-4abc-9d97-bcd92c211241\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 800 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG Closed Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined with O-ring receiver grooves around the bore surface as well as drilled and tapped to accept 1\/2\" head studs that greatly reduce head gasket failure during high cylinder pressure scenarios. Next, the short block is Deck Plate bored and honed that to 86.1mm on our in-house Sunnen SV-30 cylinder hone. IAG's in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2020 Subaru FA20 crankshaft that is matched to OEM or King main bearings. IAG-Spec H-Beam rods with ARP2000 rod bolts are utilized, along with King or ACL rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, IAG-Spec 86.1mm forged pistons are installed, along with an OEM oil plug finishing off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 800 Closed Deck Short Block BRZ O-rings\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/119e4e2f-3e65-42f8-9665-4c28ef06568f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eMODIFIED OIL PASSAGES FOR INCREASED OILING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eAdequate oil flow is critical to performance and relibility. It's no secret that the OEM cases from Subaru leave something to be desired in the oiling department. Our machinists carefully inspect and modify the internal oil passages of each new OEM case used in the IAG 800 Short Block to ensure proper flow and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"FA20 Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/d2a9d78c-b124-4048-b54e-9bf98a1f8107\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 800 Short Block features IAG Spec JE FSR 86.1mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250\" x .210\" wall carbon steel wrist pins with Tru Arc locks. Note: This block features 12.5:1 Standard Compression pistons which are ideal for lower boost or stock applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 800 Short Block has a power output rating of 800 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block oil plugs? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (2) OEM Oil Plugs.* Never reuse a rear main seal on a new short block.* Please note all IAG FA20 Short Blocks come with the oil pan side plug preinstalled. This kit does not include that plug.\u003c\/p\u003e\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066704081114,"sku":"IAG-ENG-S886H","price":6499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apijl7ojw__05478.1633558687.1280.1280__08003.1678310102.1280.1280.jpg?v=1781530349"},{"product_id":"iag-1000-fa24-subaru-closed-deck-short-block-for-2022-24-wrx-1000-bhp","title":"IAG 1000 FA24 Subaru Closed Deck Short Block for 2022-24 WRX - 1000 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 1000 FA24 SUBARU CLOSED DECK SHORT BLOCK FOR 2022-24 WRX - 1000 BHP\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/wMyu29StFpU?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=wMyu29StFpU\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 1000 FA24 Short Block for 2022+ Subaru WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/7be99c38-b20f-47ce-91fb-4e9eff3802d3\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE ULTIMATE “WEEKEND RACER”\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1000 FA24 Short Block combines top-tier components and cutting-edge technology to deliver the perfect balance of street reliability and track-level power. This ultimate \"weekend racer\" block is engineered to handle up to 1000 BHP and built to dominate in any setting. The IAG 1000 FA24 Short Block features +2mm IAG Spec H-Beam forged connecting rods, IAG-Spec JE Pistons with electroless nickel-plated coating and H13 tool steel wrist pins. The block is precision-machined to accommodate our venerable \"Fire-Lock\" head gasket system and IAG 14mm head studs (sold separately). Each IAG 1000 short block is hand assembled using ACL rod and main bearings. The versatile IAG 1000 is the perfect setup that excels on the street, the drag strip and on the track.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Subaru FA24 WRX Heat Treated Crank\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/ccaa31e2-019a-4365-b3c8-ef5303627015\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1000 FA24 Short Block starts with brand new Subaru 2.4L WRX engine case halves. Our machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a pair of deck plates are attached and the short block is bored and honed to 94.25mm in our in-house Sunnen cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The Haas mill also cuts a groove at the top of each cylinder to accept the Fire-Lock head gasket rings and drills each head bolt hole for 14mm head studs. The modified case halves are then assembled using a new 2022+ Subaru 2.4L heat treated WRX crankshaft and IAG-Spec Tuff H-Beam connecting rods with ARP rod bolts. IAG Short blocks feature ACL rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new OEM main\/case bolts and sealant.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Fire-Lock Head Gaskets for FA24 WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/26c67381-a1be-4b30-ae68-66948191bdee\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEVER WORRY ABOUT HEAD GASKET FAILURES\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1000 FA24 Short Block features our proprietary \"Fire-Lock\" Head gasket system. This system has been proven in our record setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. Our machinists carefully machine a lip at the top of each cylinder to accept the \"Fire-Lock\" ring. With the ring locked in place, it stands proud above the deck, providing a superior seal. The separate gasket bodies take care of sealing oil and coolant passages and keeping them out of the combustion chamber. 14mm Head studs hold the assembly together. (Fire-Lock Gaskets and 14mm Head Studs Sold Separately).\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG FA24 WRX Closed Deck Conversion\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/c2dcf376-ac55-49c3-8779-87f006dbcb32\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCLOSED DECK FOR EXTRA STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur unique closed deck system significantly increases the strength of the OEM case halves. This process supports the cylinder walls at the top of the case in order to prevent flexing and possible cracking where the case bolt reliefs are cut into the back of the cylinder wall. During the installation process we machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts. Once the case has been machined we heat it in an oven while freezing the specially machined inserts with liquid nitrogen. The inserts are then pressed into place and then machined to a mirror finish. The unique inserts feature small passages that allow needed coolant flow to the deck surface. This means that the closed deck system does not affect the block's cooling ability and will not cause overheating, even in daily drivers. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG-Spec JE FSR Pistons for 2022+ Subaru WRX\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/099ed62c-3c87-4c72-91ea-17cadda57ce4\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePISTONS SPECIALLY DESIGNED WITH POWER IN MIND\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe pistons used in the IAG 1000 FA24 Short Blocks are specifically designed to support the rigors of racing. Designed in partnership with JE, these IAG-Spec pistons feature electroless nickel plating and a 2618 Alloy. Extra thick ring lands resist collapsing under pressure. The upgraded .230\" wall H13 tool steel offset wrist pins are designed to hold up to 1000 BHP without bending or breaking. The pistons also feature JE's Perfect Skirt coating.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 1000 FA24 Short Block delivers street reliability with track-level power, supporting up to 1000 BHP.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru FA24 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru FA24 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003eInstall Notes:1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066705260762,"sku":"IAG-ENG-S1024","price":6999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-ENG-S1024-01__66951.1747754210.1280.1280.jpg?v=1781530707"},{"product_id":"iag-950-ej25-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-950-bhp","title":"IAG 950 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 950 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 950 EJ25 2.5L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/V1nwJV1USwU?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=V1nwJV1USwU\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"Stage 2 Short Block H-Beam Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/f5a35104-74c9-4c1a-a0dc-f23f3e5534fb\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eRACE ON SUNDAY, WORK ON MONDAY\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 950 Short Block is the ultimate \"weekend racer\" block. Built to withstand up to 950 BHP, this is our strongest \"Street\" short block offering. The IAG 950 short block features +2mm IAG Spec H-Beam forged connecting rods, IAG-Spec JE Pistons with electroless nickel plated coating with H13 tool steel wrist pins, and our venerable \"Fire-Lock\" head gasket system for 14mm head studs. Each IAG 950 short block is hand assembled using ACL or King rod and main bearings. This combination of parts makes the IAG 950 the perfect block for drag or road racing.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"EJ25 STI Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/4134626c-1677-4b40-ac18-6a8639811c32\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 950 Short Block starts with brand new Subaru 2.5L engine case halves. Our machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a deck pair of deck plates are attached and the short block is bored and honed to 99.75mm in our in-house Sunnen SV-30 computer controlled cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The Haas mill also cuts a groove at the top of each cylinder to accept the Fire-Lock head gasket rings and drills each head bolt hole for 14mm head studs. The modified case halves are then assembled using a new 2017+ Subaru 2.5L nitride treated STI crankshaft and IAG-Spec Tuff H-Beam connecting rods with ARP rod bolts. IAG Short blocks feature ACL or King Race rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new OEM main\/case bolts and sealant.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Fire-Lock Head Gasket System\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/2aab2d7f-ae8c-4751-a4ac-a029914ba7c6\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEVER WORRY ABOUT HEAD GASKET FAILURES\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 950 EJ25 Closed Deck Short Block features our proprietary \"Fire-Lock\" Head gasket system. This system has been proven in our record setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. Our machinists carefully machine a lip at the top of each cylinder to accept the \"Fire-Lock\" ring. With the ring locked in place, it stands proud above the deck, providing a superior seal. The separate gasket bodies take care of sealing oil and coolant passages and keeping them out of the combustion chamber. 14mm Head studs (Not Included) hold the assembly together.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 950 Closed Deck Block\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/9ad69b38-e040-4d87-918f-a196ee8e5ed4\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCLOSED DECK FOR EXTRA STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur unique closed deck system significantly increases the strength of the OEM case halves. This process supports the cylinder walls at the top of the case in order to prevent flexing and possible cracking where the case bolt reliefs are cut into the back of the cylinder wall.\u003cbr\u003eDuring the installation process we machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts. Once the case has been machined we heat it in an oven while freezing the specially machined inserts with liquid nitrogen. The inserts are then pressed into place and then machined to a mirror finish.\u003cbr\u003eThe unique inserts feature small passages that allow needed coolant flow to the deck surface. This means that the closed deck system does not affect the block's cooling ability and will not cause overheating, even in daily drivers.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 950 IAG-SPec JE Pistons and Rings\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/f3e145ac-96d8-42e0-8a6b-16dfe5e62914\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePISTONS SPECIALLY DESIGNED WITH POWER IN MIND\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe pistons used in the IAG 950 Short Blocks are specifically designed to support the rigors of racing. Designed in partnership with JE, these IAG-Spec pistons feature electroless nickel plating and a 2618 Alloy. Extra thick ring lands resist collapsing under pressure. The upgraded .250\" wall H13 tool steel offset wrist pins are designed to hold up to 950 BHP without bending or breaking. The pistons also feature JE's Perfect Skirt coating.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 950 Short Block has a power output rating of 950 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru EJ25 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003e1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713256154,"sku":"IAG-ENG-S950","price":6499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apiyke6d7__63217.1633558543.1280.1280__76099.1698680426.1280.1280.jpg?v=1781533637"},{"product_id":"iag-performance-crest-cnc-stage-x-2-5l-subaru-billet-aluminum-short-block-for-wrx-sti-lgt-fxt","title":"IAG Performance - Crest CNC Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, LGT, FXT","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG PERFORMANCE \/ CREST CNC 2.5L SUBARU BILLET ALUMINUM SHORT BLOCK 1150+ BHP\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=AMytJ0EHOZo\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG PERFORMANCE \/ CREST CNC STAGE X SUBARU EJ SHORT BLOCK\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-353.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE IAG PERFORMANCE \/ CREST CNC STAGE X SHORT BLOCK\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance \/ Crest CNC 2.5L Subaru Billet Aluminum Short Block aspires to revolutionize the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max-power builds. The Stage X Billet Short Block is engineered to eliminate case flex in high-power EJ builds, making it possible to reliably run at a power output rating of 1150+BHP. This short block is equipped with radiused coolant and oil galleries to improve flow, a 4-bolt bottom end for added strength, and replaceable iron sleeves, making rebuilds easier. If you are looking for an EJ engine that can deliver high horsepower without any compromises, then the Crest CNC\/IAG Stage X billet short block is the perfect choice!\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Crest Billet Aluminum Subaru Engine Case\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-354.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSOLID FOUNDATION BY CREST, POWERED BY IAG\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe Stage X Billet Short Block is a complete short block built by IAG on the Crest billet platform. Crest CNC (formerly Willall), is renowned for their precision-machined billet aluminum engine blocks and components. With Crest’s proven track record of producing blocks that endure the rigors of high-output engines, combined with our expertise in high-powered aftermarket Subaru builds, this collaboration delivers an unbeatable foundation for those pushing the limits of performance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Solid Billet Aluminum Subaru EJ25 case halves\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-355.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSOLID BILLET ALUMINUM PLATFORM WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe Stage X Billet Short Block case is precision machined by Crest CNC using 6061-T6 Aerospace Aluminum and reinforced with Darton Ductile Iron Sleeves. The billet case halves are meticulously hand-assembled by our expert Subaru technicians, and include the IAG Spec Billet crankshaft, custom IAG-Spec +2mm Tri-Beam connecting rods and ARP 625+ rod bolts, along with IAG Spec JE 99.5mm FSR 2618 forged pistons. The Stage X Short Block also includes ACL or King rod and main bearings and is balanced and blueprinted. Finally, the case halves are sealed with new ARP main\/case bolts and sealant.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-356.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEXT-LEVEL INNOVATION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance \/ Crest CNC 2.5L Subaru Billet Aluminum Short Block is engineered with numerous advanced features that enhance strength and reliability. Precision machined from solid aluminum billet and hard anodized to prevent marking or staining, this short block is multiple times stiffer and stronger than the stock case, making it ideal for high-powered builds. Additionally, increased material thickness has been strategically added in all known weak points, particularly around the head studs and bottom end location, enhancing the block's resilience.\u003cbr\u003e\u003cbr\u003eAdditional innovations featured in the Stage X Short Block include a unique 4-bolt bottom end design that provides extra strength and stability. The block’s bolt threads are rolled, rather than conventionally cut, ensuring a solid grip on hardware. Not only does this short block maintain full cooling system operations, but it incorporates the use of its radiused coolant and oil galleries for improved flow and less foaming and\/or turbulence. Finally, the Stage X Short Block is compatible with all factory engine bay ancillaries (i.e., AC\/PS\/etc.).\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Fire-Lock EJ25 Subaru Head Gasket System \" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-363.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG’S FIRE-LOCK SYSTEM: NO MORE HEAD GASKET WORRIES\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance \/ Crest CNC 2.5L Subaru Billet Aluminum Short Block features our proprietary \"Fire-Lock\" receiver groove machining and is compatible with our IAG \"Fire-Lock\" Head Gaskets. This system has been proven in our record setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. Our machinists carefully machine a lip at the top of each cylinder to accept the \"Fire-Lock\" ring. With the ring locked in place, it stands firmly above the deck, providing a superior seal. The separate gasket bodies take care of sealing oil and coolant passages, while keeping them out of the combustion chamber. 14mm Head studs hold the assembly together. (IAG \"Fire-Lock\" Head Gaskets and Head Studs Sold Separately).\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Custom JE Pistons\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-370.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCUSTOM JE PISTONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Stage X Short Block features JE 99.5mm FSR 2618 custom pistons, engineered to deliver outstanding performance for both street driving, as well as for drag and rally racing applications. These pistons feature thicker ringlands and are treated with electroless nickel-plating, resulting in a stronger piston that can stand up to highly boosted applications. Additionally, they come equipped with .250\" \/ .927” H13 tool steel wrist pins, providing a significant upgrade over standard chromoly pins, ensuring enhanced reliability under extreme conditions.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG-Spec JE Forged Pistons\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-371.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT TO PERFORM\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eA common failure point of the OEM Subaru short block are the piston ringlands. The metal ledges on the pistons that hold the compression rings in place can withstand regular usage but are prone to failure when used with modified components. Cracked or broken ringlands often lead to increased oil consumption and eventual bearing failure if the oil is not closely monitored. In contrast, the increased ringland thickness on the custom JE pistons used in the IAG Stage X Short Block are designed to match up to its high-powered capabilities, ensuring durability and reliability even under extreme-performance conditions.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG-Spec JE Pistons , Rings, Pins, Clips\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-372.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED ALUMINUM ALLOY\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe OEM EJ25 pistons continue to be produced using a hypereutectic cast design, which is susceptible to irregularities in both the casting process and the materials used, leading to potential weaknesses. These cast pistons simply lack the strength needed to handle the extreme power output of this high-performance short block. This is where our custom JE pistons come in; forged from a durable 2618 T6 Alloy with a unique silicone additive, these JE pistons effectively absorb the direct shock and impact of combustion. Engineered to withstand ringland damage due to detonation and preignition, they feature a higher strength material and have been custom designed to feature thicker ringlands.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Assembled IAG \/ Crest Stage X Subaru EJ25 Billet Short Block\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-373.jpg\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePROFESSIONALLY ASSEMBLED AND READY TO INSTALL\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur team of certified Subaru specialists at IAG Performance takes great care in assembling each IAG Stage X Short Block. These specialists have now built over 14,000 Subaru engines and counting. Equipped with an advanced selection of tooling and state-of-the-art equipment, we guarantee the quality of all our engine blocks. Each block is meticulously crafted and thoroughly checked, ensuring the highest standards of quality assurance. IAG’s hand-assembled Short Blocks make it easy to upgrade your EJ25 Subaru engine, just leave the technical work to us, and we’ll provide you with a superior short block that’s ready to install. \u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG \/ Crest CNC Stage X Short Block has a power output rating of 1150+BHP.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers, always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru EJ25 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003eInstall Notes:1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713223386,"sku":"IAG-ENG-SX25","price":17999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-ENG-SX25-01__03126.1729104343.1280.1280.jpg?v=1781533638"},{"product_id":"iag-550-2-5l-subaru-short-block-for-wrx-sti-legacy-gt-forester-xt-550-bhp","title":"IAG 550 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT - 550 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 550 EJ25 2.5L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/gzqim5R6EUo?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=gzqim5R6EUo\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 550 2.5L Subaru Case Half Set for WRX, STI, Legacy GT, Forester XT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/33e99668-b13d-437f-a25f-80ec99e19b8f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eDesigned for modified EJ25 Subarus, the IAG 550 Short Block is a sturdy upgrade that is capable of handling higher cylinder pressures created by increased boost levels. The OEM Subaru connecting rods and pistons (yes, even the STI RA) aren’t strong enough to take on the additional engine load of a larger turbocharger or an increase in boost pressure, which can quickly lead to costly engine failure. Built for boost, IAG’s 550 Short Block solves this problem by incorporating the use of high performance internal components that can stand up to extra load on the motor, ensuring longevity and reliability in high-performance scenarios.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 550 2.5L Subaru Short Block Connecting Rods for WRX, STI, Legacy GT, Forester XT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/e4d9d8ef-eb58-4c8a-ba3a-108d8c0f573b\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG SPEC H-BEAM FORGED CONNECTING RODS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 550 Short Block features IAG Spec H-Beam forged connecting rods with ARP2000 rod bolts, along with ACL or King race rod bearings. These structurally optimized connecting rods provide solid support to your high powered EJ25 Subaru engine. Capable of withstanding higher RPM conditions, the ACL and King race rod bearings are a perfect match for this resilient and capable short block. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 550 2.5L Subaru Short Block Forged Pistons for WRX, STI, Legacy GT, Forester XT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/80d9c91d-0b41-4242-a739-2950226da5b1\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG SPEC JE FORGED PISTONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eTo create this high strength short block, IAG teamed up with JE Pistons to create a high performing piston strong enough to match up to the capabilities of the 550 Short Block. With over seventy years of experience in manufacturing ready-to-race forged pistons, JE Pistons has been an invaluable partner in the development of the IAG Spec JE 99.75mm Forged Pistons installed in the IAG 550 Short Block.\u003cbr\u003e\u003cbr\u003eThese 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, which also significantly reduces piston weight. Another design attribute of the IAG Spec JE Forged Pistons is the smooth flowing radii on the domes and dishes, which promotes superior flame travel. The pistons are securely fastened to the rods with .905 x 2.250\" x .180\" wall carbon steel wrist pins combined with Tru Arc locks.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Comparison of Type RA and IAC-Spec JE Forged Pistons.\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/d8a84ae3-8f44-48d6-bd97-5ba238de6905\/-\/format\/auto\/-\/quality\/normal\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eWHY UPGRADE?\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe most common failure point of the OEM Subaru STI EJ257 short blocks are the piston ringlands. The metal ledges on the pistons that hold the compression rings in place can stand up to regular usage, but are susceptible to failure when used in conjunction with modifications. Cracked or broken ringlands often result in increased oil consumption and eventual bearing failure if the oil level is not closely monitored. While Subaru’s RA block has slightly stronger pistons than the STI EJ257, they are still prone to the same type of failure caused by damaged ringlands.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 550 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/2a3088aa-3f0f-4f22-a25a-65dee3837b27\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSUPERIOR DESIGN\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe pistons in the OEM Subaru STI EJ257 and the RA blocks continue to be produced using a hypereutectic cast design. This casting method is susceptible to irregularities in both the casting process and the materials used, leading to potential weaknesses in the pistons. This is where the IAG Spec JE Piston comes in; forged from a durable 2618 T6 Alloy with a unique silicone additive, these JE pistons effectively absorb the direct shock and impact of combustion. Engineered to withstand ringland damage due to detonation and preignition, they feature a higher strength material and have been custom designed to feature thicker ringlands.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 550 2.5L Subaru Short Block Crankshaft for WRX, STI, Legacy GT, Forester XT\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/f6ce92ed-b715-40ba-8ddf-7cad5327add7\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 550 Short Block starts with a brand-new EJ25 Subaru 2.5L case providing a solid foundation for its upgraded components. The case halves are bored and honed to 99.75mm, then measured and assembled using a new 2017+ Subaru 2.5L nitride-treated STI crankshaft, which is matched to ACL or King race main bearings. The IAG 550 Short Block also features IAG Spec H-Beam Connecting Rods with ARP2000 rod bolts, along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally, a set of IAG Spec JE 99.75mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Professionally Assembled Short Block\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/76dc05b6-5dc3-46d8-a835-0a9e6d037434\/-\/format\/auto\/-\/quality\/normal\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePROFESSIONALLY ASSEMBLED AND READY TO INSTALL\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur team of certified Subaru specialists at IAG Performance takes great care in assembling each IAG 550 Short Block. These specialists have now built over 16,000 Subaru engines and counting. Equipped with an advanced selection of tooling and state-of-the-art equipment, we guarantee the quality of all our engine blocks. Each block is meticulously crafted and thoroughly checked, ensuring the highest standards of quality assurance. IAG’s assembled Short Blocks make it easy to upgrade your EJ25 Subaru engine, just leave the technical work to us, and we’ll provide you with a superior short block that’s ready to install. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/cd4d2b1c-e805-43e9-9f9e-49900fce912e\/-\/format\/auto\/-\/quality\/normal\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eWE’VE GOT YOU COVERED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWhile a new OEM block from Subaru doesn't come with a warranty when installed in a different vehicle, IAG Performance supports your purchase with a 12-month or 12,000-mile workmanship warranty for the IAG 550 Short Block. We take that even further to a 24-month, 24,000-mile workmanship warranty when purchased, installed, and tuned at one of our Certified Engine Installation facilities around the country. At IAG Performance, we are committed to your satisfaction and the lasting quality of our products. Our goal is to deliver a superior product that will last you for miles to come.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 550 Short Block has a power output rating of 550 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\" 1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713682138,"sku":"IAG-ENG-S550","price":4499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/api13uxz3__40268.1633558626.1280.1280__66374.1678223271.1280.1280.jpg?v=1781533637"},{"product_id":"iag-750-ej25-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-750bhp","title":"IAG 750 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 750BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 750 EJ25 2.5L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/R85V-d4AQgE?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=R85V-d4AQgE\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG H Beam Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/7396b637-810d-412e-ad6b-c50ccaf8b58f\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE PROBLEM SOLVER\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 750 Short Block is designed to solve the majority of common problems which plague modified EJ25 engines, especially at higher horsepower levels. The IAG 750 short block builds off our IAG 550 block's strengths by adding our proprietary closed deck system. This system strengthens and supports the cylinder walls to prevent cracks which can occur with increased cylinder pressures. (This is the most common issue when increasing horsepower.) The IAG 750 also features 99.75mm JE Forged Pistons and IAG Spec H beam connecting rods, along with ACL or King Race bearings. These components also significantly strengthen the common failure points such as cracked ring lands and spun bearings.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"EJ25 STI Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/4134626c-1677-4b40-ac18-6a8639811c32\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 750 Short Block starts with brand new Subaru 2.5L engine case halves. Our machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a deck pair of deck plates are attached and the short block is bored and honed to 99.75mm in our in-house Sunnen SV-30 computer controlled cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The modified case halves are then assembled using a new 2017+ Subaru 2.5L nitride treated STI crankshaft and IAG-Spec Tuff H-Beam connecting rods with ARP rod bolts. IAG Short blocks feature ACL or King Race rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new OEM main\/case bolts and sealant.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 750 Closed Deck Block\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/c1b2251b-e254-40a8-8a1f-1f288200b73b\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCLOSED DECK FOR EXTRA STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur unique closed deck system significantly increases the strength of the OEM case halves. This process supports the cylinder walls at the top of the case in order to prevent flexing and possible cracking where the case bolt reliefs are cut into the back of the cylinder wall. \u003cbr\u003eDuring the installation process we machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts. Once the case has been machined we heat it in an oven while freezing the specially machined inserts with liquid nitrogen. The inserts are then pressed into place and then machined to a mirror finish. \u003cbr\u003eThe unique inserts feature small passages that allow needed coolant flow to the deck surface. This means that the closed deck system does not affect the block's cooling ability and will not cause overheating, even in daily drivers. \u003cbr\u003e\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 750 Pistons and Rings\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/fd58140d-437d-41ba-bfcf-936ef06a1ace\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFORGED PISTONS, DESIGNED FOR BOOST\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEach IAG 750 Short Block features IAG Spec JE FSR 99.75mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250\" x .210\" wall 9310 steel wrist pins with Tru Arc locks. The thicker steel wrist pins support additional power over the standard .180\" pins.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Hybrid Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/0be2a80e-1b47-454d-b22a-36381c9613d7\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOPTIONAL \"HYBRID\" PISTONS FOR EJ20 HEADS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIf you plan to use the IAG 750 Short Block with EJ20 Cylinder Heads, make sure to select the \"Hybrid Pistons\" option at checkout. These specially designed JE pistons allow the use of EJ20 cylinder heads without the requirement for a chamber matching service to be performed to the cylinder heads. This option is great for international clients who are not able to send their cylinder heads in for modification. This also works great for USDM EJ20 owners who prefer to use a 2.5l short block. The 9.5:1 Compression JE FSR piston set includes .905 x 2.250 straight wall carbon steel wrist pins with Tru Arc locks along with a complete ring set.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 750 Short Block has a power output rating of 750 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"No, I am using EJ25 Cylinder Heads","offer_id":48066714108122,"sku":"IAG-ENG-S750","price":5499.99,"currency_code":"USD","in_stock":true},{"title":"Yes, I will be using this block with EJ20 Cylinder Heads","offer_id":48066714075354,"sku":"IAG-ENG-S750IH","price":5599.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apivskc2d__78153.1633558767.1280.1280__86239.1678302977.1280.1280.jpg?v=1781533640"},{"product_id":"iag-1150-high-compression-2-5l-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-1150-bhp","title":"IAG 1150 High Compression 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 1150 HIGH COMPRESSION 2.5L SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT - 1150 BHP\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/BmOKcUt4M4U?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=BmOKcUt4M4U\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 1150 High Compression Subaru 2.5L Short Block For WRX STI\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/051019c6-0c26-4e23-9824-2687cc79d5e4\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE IAG 1150 HIGH COMPRESSION SHORT BLOCK\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eBuilt for high-octane fuels such as E85 and race gas, the IAG 1150 High Compression 2.5L Closed Deck Short Block is the ideal choice for high-horsepower drag racing scenarios. While suitable for street use, it’s built to dominate the track. Compared to our regular 1150 Short Block pistons with compression ratios of 8.5:1 (D Heads, EJ255) and 8.2:1 (B, V, and W Heads, EJ257), the IAG High Compression 1150 steps it up to 9.9:1 on D Heads and 9.5:1 on B, V, and W Heads, unlocking more power and efficiency needed for race applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec Subaru EJ Tri-Beam +2mm Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/8bdbcdf6-233c-4bf1-9695-255b2f73fec1\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT FOR SPEED AND POWER\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThis high compression Subaru block includes additional features to further strengthen the OEM case halves including Stage 4 Closed Decking and pinned mains secured with ARP case hardware. Our record-setting \"Fire-Lock\" Head Gasket system and 14mm head studs are used to ensure a tight seal even in extreme conditions. In addition, this short block also features IAG Spec \"Tri-Beam\" +2mm forged connecting rods. An IAG Spec Billet Crankshaft is used to support additional oiling and prevent main bearing distortion. The upgraded block, billet crank, connecting rods, race bearings, and forged pistons are able to support additional engine load produced by the largest turbochargers and the most demanding uses including competition drag racing.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec Billet Subaru EJ Crankshaft\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/32005ba9-3457-4ab6-b2e4-336d667cff41\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEvery IAG Short Block is built with 100% new components. The modified case halves are assembled using an IAG-Spec Billet crankshaft that is matched to ACL or King race main bearings. Custom IAG TRI-BEAM +2mm connecting rods with ARP 625+ rod bolts are utilized, along with ACL or King race rod bearings. The case halves are sealed with OEM sealant and ARP main bolts. The IAG-Spec 99.75mm Custom Forged Pistons with .250\" wall \/ .927\" diameter wrist pins as well as electroless nickel plated tops and ring area are chosen to finish the IAG 1150 High Compression Short Block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Fire-Lock Head Gasket System for Subaru\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/0be5c15b-1d60-476d-88b2-12eeadb7fdf6\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG CLOSED DECK WITH FIRE-LOCK SYSTEM\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 High Compression Short Block starts with brand new Subaru 2.5L EJ25 engine case halves. The case halves are split and the main webs are CNC machined in our Haas VF-4SS CNC mill for 9.5mm pins to reduce distortion and movement of the case in extreme conditions. The case halves are then reassembled and IAG machines the case to accept the IAG CLOSED Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined for our new Fire-Lock head gasket solution that is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The IAG 1150 case is CNC drilled and tapped to fit 14mm head studs. Utilizing the new Fire-Lock gasket solution, along with larger IAG \/ ARP 14mm head studs, nuts, and washers reduce the chances of the heads lifting under extreme boost conditions. The short block is then Deck Plate bored and honed to 99.75mm in our in-house Sunnen SV-30 cylinder hone. IAG's in-house honing process is able to set custom piston to wall clearances to ensure performance and reliability. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1150 High Compression Subaru EJ WRX STI Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/433a459e-d1f3-40ed-8edc-70b188fc2a70\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eSTRONG \u0026amp; LIGHT DESIGN\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 High Compression Short Block uses our IAG-Spec 99.75mm Custom Forged Pistons with .250\" wall \/ .927\" diameter wrist pins feature electroless nickel plated tops and ring area. IAG's custom pistons feature a lightweight design while increasing strength where you need it and are designed to work exclusively with the IAG +2mm Tri-Beam connecting rods. The wrist pin is short and is made from strong H13 tool steel. The pin piers are profiled to increase pin boss strength. Finally, IAG's pistons feature added gas ports that aid ring sealing in high boost conditions. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1150 High Compression Piston Close-Up\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/6103af5d-d593-4187-b7b0-57d235e7c5d9\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG HIGH COMPRESSION PISTONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 High Compression Short Block includes all the premium components of our 1150 short block, upgraded with custom high compression pistons. These pistons increase the compression ratio by reducing the pistons negative cc volume, and changing from a “dish” to a “flat top” style piston, making them ideal for racing applications where power and efficiency matter most. To ensure optimal performance, this short block requires consistent use of high-octane fuels like E85 or race gas. Pump gas is suitable only during the break-in process. \u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 1150 Short Block has a power output rating of 1150 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru EJ25 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003eInstall Notes:1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713518298,"sku":"IAG-ENG-S115H","price":9499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG-ENG-S115H-01__03737.1738163107.1280.1280.jpg?v=1781533638"},{"product_id":"iag-1150-destroked-2-35l-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-1150-bhp","title":"IAG 1150 Destroked 2.35L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 1150 EJ25 2.35L DESTROKED SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT - 1150 BHP\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=AMytJ0EHOZo\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 1150 EJ25 2.35L Destroked Closed Deck Short Block\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/eb828cc0-f916-4243-9c5e-7c1eb980a198\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/better\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eTHE IAG 1150 EJ25 2.35L DESTROKED CLOSED DECK SHORT BLOCK\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eIAG’s 1150 EJ25 2.35L Destroked Closed Deck Short Block is built for power, capable of handling up to 1150 BHP. While still a streetable block, the 1150 is optimized for the track. This hand assembled block is based off of our 1150 short block and features an IAG Spec billet 75mm crankshaft, custom IAG Spec +2mm Tri-beam forged connecting rods and ARP 625+ rod bolts. Also included in the assembly are JE 99.75mm FSR 2618 custom pistons that have been treated with electroless nickel-plating, creating a hard-wearing surface that offers detonation resistance and heat reflection. This strengthened short block, combined with a billet crank, race bearings, along with forged connecting rods and pistons delivers a rock-solid foundation that is able to endure intense engine loads generated by large turbochargers and high-powered racing conditions, including competition drag racing.  \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Spec +2mm Tri-beam forged Rods and IAG Spec billet 75mm crank\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/cbbdc3f8-5476-41ea-9b63-d90670bb526b\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eDESTROKED FOR HIGH-REVVING APPLICATIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eFeaturing a shorter stroke, these +2 rod engines reduce piston speeds, optimizing the rod-to-stroke ratio and increasing piston dwell time at top dead center. This results in improved combustion efficiency and reduced stress on engine components at high RPMs. In terms of performance, this means increased power output, extended ring life, and the ability to rev higher—making this short block an ideal choice for track days, racing, or competition drag racing applications. Our recommended maximum rev limit is 9,000 RPM for these short blocks.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 2.35L Destroked Subaru Closed Deck\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/c46ac0fc-b4de-4ebd-8b56-922058f31694\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/better\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe 1150 EJ25 Short Block starts with brand new Subaru 2.5L engine case halves. Our expert machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a deck pair of deck plates are attached and the short block is bored and honed to 99.75mm in our in-house Sunnen SV-30 computer controlled cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The Haas mill also cuts a groove at the top of each cylinder to accept the Fire-Lock head gasket rings and drills each head bolt hole for 14mm head studs. The modified case halves are then assembled using a new IAG Spec billet 75mm crankshaft, custom IAG Spec +2mm Tri-beam forged connecting rods and ARP 625+ rod bolts, along with JE 99.75mm FSR 2618 custom pistons. IAG Short blocks feature ACL rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new ARP main\/case bolts and sealant.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Fire-Lock Gaskets\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/afd02531-3511-4aed-8f19-8f877cf2c6ee\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/better\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG’S FIRE-LOCK SYSTEM: NO MORE HEAD GASKET WORRIES\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 EJ25 2.35L Destroked Closed Deck Short Block features our proprietary \"Fire-Lock\" Head gasket system. This system has been proven in our record setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. Our machinists carefully machine a lip at the top of each cylinder to accept the \"Fire-Lock\" ring. With the ring locked in place, it stands proud above the deck, providing a superior seal. The separate gasket bodies take care of sealing oil and coolant passages and keeping them out of the combustion chamber. 14mm Head studs (Not Included) hold the assembly together.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Closed Deck Machining\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/e6fd51c0-1cc3-4f54-8841-de8e6b8da7ea\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/better\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCLOSED DECK FOR EXTRA STRENGTH\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur innovative closed deck system significantly increases the strength of the OEM case halves. This process supports the cylinder walls at the top of the case in order to prevent flexing and possible cracking where the case bolt reliefs are cut into the back of the cylinder wall. During the installation process, we machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts. Once the case has been machined we heat it in an oven while freezing the specially machined inserts with liquid nitrogen. The inserts are then pressed into place and then machined to a mirror finish. The 1150 Short Block also features our exclusive case bolt reinforcement plugs, which are threaded and indexed to the deck surface for additional case strength. Our distinctive inserts feature small passages that allow needed coolant flow to the deck surface. This means that the closed deck system does not affect the block's cooling ability and will not cause overheating, even in daily drivers. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"Custom JE Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/bc6f7132-f181-4e42-b263-a567a48e3267\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCUSTOM JE PISTONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 Short Block features JE 99.75mm FSR 2618 custom pistons, engineered to deliver outstanding performance for both street driving, as well as for drag, road and rally racing applications. These pistons feature thicker ringlands and are treated with electroless nickel-plating, resulting in a stronger piston that can stand up to highly boosted applications. Additionally, they come equipped with .240\" H13 tool steel wrist pins, providing a significant upgrade over standard chromoly pins, ensuring enhanced reliability under extreme conditions.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Engine Assembly\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/2e2d5a88-37b4-4147-9558-3af30fcc3320\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/better\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePROFESSIONALLY ASSEMBLED AND READY TO INSTALL\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eOur team of certified Subaru specialists at IAG Performance takes great care in assembling each IAG 1150 Short Block. These specialists have now built over 14,000 Subaru engines and counting. Equipped with an advanced selection of tooling and state-of-the-art equipment, we guarantee the quality of all our engine blocks. Each block is meticulously crafted and thoroughly checked, ensuring the highest standards of quality assurance. IAG’s hand-assembled Short Blocks make it easy to upgrade your EJ25 Subaru engine, just leave the technical work to us, and we’ll provide you with a superior short block that’s ready to install.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 1150 Short Block has a power output rating of 1150 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru EJ25 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003eInstall Notes:1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713845978,"sku":"IAG-ENG-S113","price":10499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/IAG_ENG-S113-01__45799.1727192296.1280.1280.jpg?v=1781533637"},{"product_id":"iag-1150-2-5l-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-1150-bhp","title":"IAG 1150 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP","description":"\u003ch2 style=\"text-align:center;\"\u003eIAG 1150 EJ25 2.5L SUBARU SHORT BLOCK\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/BmOKcUt4M4U?start=0\u0026amp;end=0\u0026amp;autoplay=1\u0026amp;loop=1\u0026amp;mute=1\u0026amp;playlist=BmOKcUt4M4U\u0026amp;version=3\u0026amp;rel=0\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cimg alt=\"IAG 1150 Short Block Tri Beam Connecting Rods\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/3a7b2793-fb4e-4a5a-bf90-3f34dfadf005\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT TO WITHSTAND HIGH HORSEPOWER DRAG RACING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 Short Block is designed for those who plan to drag race their high horsepower Subarus regularly. While still a streetable block, the IAG 1150 is designed for the track. This block includes additional features to further strengthen the OEM case halves including Stage 4 Closed Decking and pinned mains secured with ARP case hardware. Our record-setting \"Fire-Lock\" Head Gasket system and 14mm head studs are used to ensure a tight seal even in extreme conditions. The IAG 1150 Short Block features IAG Spec \"Tri-Beam\" +2mm forged connecting rods. An IAG Spec Billet Crankshaft is used to support additional oiling and prevent main bearing distortion. The upgraded block, billet crank, connecting rods, race bearings, and forged pistons are able to support additional engine load produced by the largest turbochargers and the most demanding uses including competition drag racing. \u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1150 Short Block During Assembly\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/bea9ca1b-be1e-49dd-adaa-59e7530a99c1\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eBUILT WITH 100% NEW COMPONENTS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eEvery IAG Short Block is built with 100% new components. The modified case halves are assembled using an IAG-Spec Billet crankshaft that is matched to ACL or King race main bearings. Custom IAG TRI-BEAM +2mm connecting rods with ARP 625+ rod bolts are utilized, along with ACL or King race rod bearings. The case halves are sealed with OEM sealant and ARP main bolts. The IAG-Spec 99.75mm Custom Forged Pistons with .250\" \/ .927\" wrist pins as well as electroless nickel plated tops and ring area are chosen to finish the IAG 1150 Short Block.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG Short Block with Fire-Lock Gaskets\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/0fb9d8c8-2ab8-4205-8217-e5c10c475a51\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eIAG 1150 CLOSED DECK WITH FIRE-LOCK SYSTEM\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 Short Block starts with brand new Subaru 2.5L EJ25 engine case halves. The case halves are split and the main webs are CNC machined in our Haas VF-4SS CNC mill for 9.5mm pins to reduce distortion and movement of the case in extreme conditions. The case halves are then reassembled and IAG machines the case to accept the IAG CLOSED Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined for our new Fire-Lock head gasket solution that is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The IAG 1150 case is CNC drilled and tapped to fit 14mm head studs. Utilizing the new Fire-Lock gasket solution, along with larger IAG \/ ARP 14mm head studs, nuts, and washers reduce the chances of the heads lifting under extreme boost conditions. The short block is then Deck Plate bored and honed to 99.75mm in our in-house Sunnen SV-30 cylinder hone. IAG's in-house honing process is able to set custom piston to wall clearances to ensure performance and reliability.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"IAG 1150 Short Block JE Pistons\" loading=\"lazy\" src=\"https:\/\/i.shgcdn.com\/3dcb0072-5269-4497-b3c6-123a8e1138bd\/-\/format\/auto\/-\/preview\/3000x3000\/-\/quality\/lighter\/\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOUR STRONGEST PISTONS EVER\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG 1150 Short Block uses our strongest pistons ever - The IAG-Spec 99.75mm Custom Forged Pistons with .250\" \/ .927\" wrist pins feature electroless nickel plated tops and ring area. IAG's custom pistons feature a lightweight design while increasing strength where you need it and are designed to work exclusively with the IAG +2mm Tri-Beam connecting rods. The wrist pin is short and is made from strong H13 tool steel. The pin piers are profiled to increase pin boss strength. Finally, IAG's pistons feature added gas ports that aid ring sealing in high boost conditions.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eNEED HELP CHOOSING A BLOCK?\u003c\/h2\u003e\n\u003cdiv class=\"video-embed\" style=\"position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AMytJ0EHOZo?start=0\u0026amp;end=0\u0026amp;autoplay=0\u0026amp;loop=0\u0026amp;rel=1\" allowfullscreen loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe made this video to highlight the differences between each of our short blocks and to help you choose the best one for your performance goals and budget. Our Build Advisors and Customer Support staff can also assist you with any questions or concerns. Just click the button below for assistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cimg alt=\"CEI\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/Unknown-378.png\" style=\"display:block;margin:0 auto;\"\u003e\n\u003ch2 style=\"text-align:center;\"\u003eQUALITY GUARANTEED\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eWe stand behind every hand-built engine we produce. IAG's Standard Short Block Workmanship Warranty covers your short block for 12 months or 12,000 miles. We have also teamed up with a selection of IAG Certified Installation Facilities which offer up to a 24 month\/24,000 mile workmanship warranty when the engine is purchased, installed, and tuned by that IAG Certified Installer.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003ePOWER RATING\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003ePower:The IAG 1150 Short Block has a power output rating of 1150 BHP\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHARDWARE \/ SEAL OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eNot planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eHEAD GASKET OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eAfter years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. IAG fire rings are manufactured to a very strict tolerance from a proprietary alloy and are then put through a heat treatment process. The gaskets are manufactured from an asbestos-free composite raw material and feature a silicone based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assure maximum sealing for a Subaru EJ25 turbocharged engine.*The IAG Fire-Lock gaskets require machine work for installation and are recommended for use with 14mm head stud hardware.*The gaskets are sold in pairs with four Fire-Lock rings.Features:\u003c\/p\u003e\n\u003cp\u003eInstall Notes:1. If a block or cylinder head was previously o-ringed the groove must be filled and resurfaced before using this type of gasket.2. These gaskets require IAG ARP 14mm head studs to achieve the required torque necessary for proper installation.3. Due to the required torque, any block that was previously honed will need to go to the next size overbore.4. Future servicing will require cylinder head resurfacing due to an imprint left from the Fire-Lock rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PICKUP \/ OIL BAFFLE \/ WINDAGE TRAY OPTIONS\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\u003cp\u003eThe IAG Performance Subaru WRX \/ STI oil pickup was designed by Tigwerks to replace the OEM EJ25 oil pickup, which is prone to failure. It's a well-known fact that the OEM oil pickups often crack and fail which, in most cases, destroys your engine from lack of oil pressure. To avoid the cracking failures seen in the OEM oil pickup tubes, the Tigwerks oil pickup is manufactured from heavy-gauge steel tubing that is 3x thicker than OEM. Additionally, it features a flange machined from 3\/8\"  1018 CR steel to mate with the block, sealed with a Viton O-ring. The integrated heavy-duty mounting bracket uses two mounting points rather than the OEM single mounting point. Furthermore, the oil pickup features a formed bottom with an OEM style mesh screen for proper filtration. The TIG-welded oil pickup's increased material thickness, matched with the two-point heavy-duty mounting bracket, helps ensure that it does not fatigue and fail over time like an OEM unit.The IAG Oil Control Baffle and Windage Tray System is designed to limit potential blow-by and prevent oil starvation in your Subaru's WRX \/ STI EJ engine during high rpm and high g-force driving. Through the use of Viton one-way flapper valves on our baffle and louvers in our windage tray, oil is prevented from reentering the upper crankcase area and is directed down into the oil pan to ensure plentiful supply to the oil pickup. IAG's integrated two-piece Oil Control Baffle and Windage Tray System is designed to work with our own oil pickup, as well as other oil pickups*. The baffle fits neatly in the engine crankcase area, allowing normal installation of the OEM oil pan and popular aftermarket pans*.Oil Pickup \u0026amp; Baffle Install Notes\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align:center;\"\u003eOIL PUMP OPTION\u003c\/h2\u003e\n\u003cdiv class=\"product-text\"\u003e\n\u003cp\u003eThe 11mm Subaru Oil pump is one of the most popular off the shelf pumps to use on EJ25 engines. Originally equipped on the 2008-21 STI Dual AVCS engines, it provides an adequate amount of pressure and flow that fits the needs of many OE and built engines. But, as with almost anything, there is room for improvement.\u003c\/p\u003e\n\u003cp\u003eIncreasing oil flow volume and pressure in an EJ25 ensures that the bearings have sufficient oil film under all power levels and driving conditions. Additional oil flow to the engine provides a greater oil reserve to operate the AVCS solenoids and cam gears - giving you more consistent performance results.\u003c\/p\u003e\n\u003cp\u003eThe IAG Stage 2 CNC Ported 11mm oil pump was developed over years of servicing street and racing engines. In that time IAG has tested and utilized the majority of the popular Subaru oil pumps available on the market (JDM, Cosworth, ACL etc.) for customer, personal and racing vehicles.\u003c\/p\u003e\n\u003cp\u003eOver the last few years if you wanted an upgraded oil pump over the stock 11mm you would either buy a hand ported model from a trusted source, or often an OEM JDM (Japanese Market) 12mm pump. We believe that we have developed a better alternative. The IAG Stage 2 CNC Ported 11mm oil pumps have shown through lab testing on a Spintron Machine that it will outperform a JDM 12mm.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 Oil pump is a cost effective solution that outperforms the market standards. This pump has been extensively tested on street cars, track cars, and on our in-house Spintron to ensure consistent and repeatable performance.\u003c\/p\u003e\n\u003cp\u003eEach IAG Stage 2 oil pump starts life as an OEM spec 11mm oil pump, straight from Subaru. IAG completely disassembles the new oil pump including pulling the rotors, backing plate \u0026amp; pressure relief valve. Next, the main body is fixtured in our in-house 5-Axis Centroid CNC machine where the inlet and outlet passageways are CNC ported. This allows for a larger, more consistent pathway for the oil into and out of the gerotor internals and helps to prevent cavitation. The Oil Pump Outlet where it meets the engine block is also CNC “Port Matched”, for a perfect transition into the engine block. The Inlet and Outlet sides of the gerotor are also opened up on the CNC mill to reduce inlet side cavitation, and to reduce outlet side pressure drops.\u003c\/p\u003e\n\u003cp\u003eThe pressure relief valve piston is REM Polished, which provides a non-directional, low Ra, polished finish. This reduces friction, heat and possibility of the relief valve piston galling and sticking, a common failure point on the OEM pumps.\u003c\/p\u003e\n\u003cp\u003eThe piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.\u003c\/p\u003e\n\u003cp\u003eFinally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued. The pump ships ready to install, with all hardware and seals required for installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":48066713354458,"sku":"IAG-ENG-S115","price":9499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/api7z1jmj__87477.1633558498.1280.1280__67141.1698680610.1280.1280.jpg?v=1781533638"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/collections\/4bffa016-c4a0-4bcd-9520-fe79012433ed.png?v=1781714856","url":"https:\/\/www.iagperformance.com\/collections\/iag-parts-engine-short-blocks.oembed","provider":"IAG Performance","version":"1.0","type":"link"}