{"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\u003eIAG 1150 2.5L Subaru Closed Deck Short Block – WRX, STI, LGT, FXT | 1150 BHP\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e IAG-ENG-S115  |  \u003cstrong\u003ePower Rating:\u003c\/strong\u003e 1150 BHP  |  \u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003cp\u003eThe IAG 1150 Closed Deck Short Block is IAG's most extreme EJ25 foundation — purpose-built for competition drag racing and high-horsepower street builds. Every unit is assembled from 100% new components and machined in-house on Haas VF-4SS CNC mills and a Sunnen SV-30 cylinder hone to exacting tolerances.\u003c\/p\u003e\n\u003cp\u003eStage 4 Closed Decking eliminates the structural weakness of the OEM open deck, with IAG's proprietary inserts pressed in via a liquid nitrogen\/oven thermal process and machined to a mirror finish. Coolant passages are retained within the inserts — no overheating risk, even in daily-driven applications.\u003c\/p\u003e\n\u003cp\u003eThe IAG Fire-Lock™ head gasket system — derived from diesel counterbore technology — machines a receiver groove around each bore to accept fire rings, paired with 14mm ARP head studs, nuts, and washers. This system is the definitive solution to head gasket failure under extreme boost. \u003cem\u003eNote: IAG Fire-Lock™ head gaskets (PN# IAG-ENG-1740) are required and sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe bottom end is built around an IAG-Spec Billet Crankshaft matched to ACL or King race main bearings, IAG Tri-Beam +2mm forged connecting rods with ARP 625+ rod bolts, and IAG-Spec JE FSR 99.75mm 2618 forged pistons with electroless nickel plated tops, H13 tool steel wrist pins, gas ports for ring sealing under high boost, and a 25% larger oil ring for reduced oil consumption.\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e99.75mm (deck plate bored \u0026amp; honed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eDeck Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eStage 4 Closed Deck (IAG Inserts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003ePistons\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eIAG-Spec JE FSR 99.75mm 2618 Forged, Electroless Nickel Plated, .250\" \/ .927\" H13 Wrist Pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eConnecting Rods\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eIAG-Spec Tri-Beam +2mm with ARP 625+ Rod Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eCrankshaft\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eIAG-Spec Billet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eBearings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eACL or King Race Rod \u0026amp; Main Bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eMain Bolts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eARP, 9.5mm Pinned Mains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eHead Stud Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e14mm (Fire-Lock™ machined)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e8.5:1 (EJ255 D heads) \/ 8.2:1 (EJ257 B, V, W heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003ePower Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e1150 BHP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003ch3\u003eVehicle Fitment:\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eSubaru WRX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e1999–2014 (w\/ EJ25 Heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eSubaru STI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e1999–2021 (w\/ EJ25 Heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eSubaru Forester XT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e1997–2013 (w\/ EJ25 Heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eSubaru Liberty GT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2004–2009 (w\/ EJ25 Heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e\u003cstrong\u003eSubaru Outback XT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e2004–2009 (w\/ EJ25 Heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eAdditional hardware may be required (ECU, sensors, ancillaries, covers, pumps, etc.).\u003c\/em\u003e\u003c\/p\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\u003cp\u003e\u003cem\u003eSold individually. Head gasket kit (PN# IAG-ENG-1740) required and sold separately. Lead times may vary — contact us for current availability.\u003c\/em\u003e\u003c\/p\u003e","brand":"IAG Performance","offers":[{"title":"Default Title","offer_id":66589761831216,"sku":"IAG-ENG-S115","price":16249.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/3156\/2544\/files\/api7z1jmj__87477.1633558498.1280.1280__67141.webp?v=1776919517","url":"https:\/\/coore.com.au\/ja\/products\/iag-1150-2-5l-subaru-closed-deck-short-block-for-wrx-sti-lgt-fxt-1150-bhp","provider":"Coore | Performance \u0026 Aftermarket","version":"1.0","type":"link"}