{"title":"FA20DIT Short Blocks","description":"\u003cp\u003eIAG Performance carries FA20DIT short blocks for Subaru WRX, including our IAG 600 through 1000 horsepower closed-deck short blocks and genuine Subaru FHI short block engines. These builds are designed for WRX owners pushing well beyond stock power levels, with our 1000 horsepower option built specifically for turbocharger upgrades and aggressive tuning\u003c\/p\u003e","products":[{"product_id":"subaru-fhi-fa20-dit-turbo-short-block-engine-2015-21-wrx","title":"Subaru FA20 DIT Turbo Short Block Engine For 2015-21 WRX","description":"\u003cp\u003eThe Subaru OEM 2.0L FA20 DIT 2015+ WRX Short Block comes assembled from the manufacturer with new pistons, rods, bearings and crankshaft.\u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":48062447845594,"sku":"10103AC480","price":2714.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/10103AC480__79395.1690902963.1280.1280.jpg?v=1781530148"},{"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-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"}],"url":"https:\/\/www.iagperformance.com\/collections\/engine-engine-builds-short-blocks-internals-fa20dit-short-blocks.oembed","provider":"IAG Performance","version":"1.0","type":"link"}