{"product_id":"950-short-block-2-5l-ej25-closed-deck-w-forged-je-pistons","title":"950 Short Block 2.5L EJ25 Closed Deck w\/ Forged JE Pistons","description":"The IAG 950 Short Block is engineered to bridge the gap between track-focused performance and street-ready reliability. The system utilizes IAG’s proprietary Fire-Lock head gasket design, which employs a precision-machined counterbore and dedicated fire ring for a superior combustion seal distinct from oil and coolant passages.\n\nInside the block, the rotating assembly consists of IAG-Spec Tuff H-Beam +2mm connecting rods with ARP 625+ rod bolts and 99.75mm JE FSR forged pistons. These pistons feature electroless nickel-plated tops and H13 tool steel wrist pins for enhanced detonation resistance and heat management. The unit is completed with a new 2017+ Subaru 2.5L nitride-treated STI crankshaft and race-grade ACL or King bearings.\n\nInstallation requires specific considerations: the engine case is precision-machined for 14mm head studs, which must be purchased separately. Achieving the rated 950 BHP capacity requires appropriate supporting modifications throughout the engine and fuel system. This block is compatible with 2002-2014 Subaru WRX, 2004-2021 STI, 2004-2013 Forester XT, and 2005-2009 Legacy GT models.","brand":"LP Stage","offers":[{"title":"Default Title","offer_id":52662821749048,"sku":"IAG-ENG-S950","price":5849.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687500290.jpg?v=1784321440","url":"https:\/\/store.motormia.co\/products\/950-short-block-2-5l-ej25-closed-deck-w-forged-je-pistons","provider":"MOTORMIA","version":"1.0","type":"link"}