{"product_id":"outfront-motorsports-575-ej257-shortblock-subaru-sti-2004-2021","title":"Outfront Motorsports 575 EJ257 Shortblock Subaru STI 2004-2021","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eOutfront Motorsports 575 EJ257 2.5L Short Block\u003c\/strong\u003e is a performance-built EJ257 short block featuring forged internals and a semi-closed-deck design. It is rated by Outfront Motorsports for \u003cstrong\u003e575 BHP\u003c\/strong\u003e and provides a stronger foundation for high-performance Subaru STI builds. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Rating:\u003c\/strong\u003e 575 BHP\u003c\/li\u003e\n\u003cli\u003eSemi-closed-deck EJ257 case\u003c\/li\u003e\n\u003cli\u003eForged CP pistons\u003c\/li\u003e\n\u003cli\u003eOutfront Motorsports H-beam connecting rods\u003c\/li\u003e\n\u003cli\u003eKing Performance bearings\u003c\/li\u003e\n\u003cli\u003eNew OEM Subaru Black Nitrite crankshaft\u003c\/li\u003e\n\u003cli\u003eRear covers, rear seal, and pin plugs included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eOUT-SB-575\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eEJ257\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplacement\u003c\/td\u003e\n\u003ctd\u003e2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlock Design\u003c\/td\u003e\n\u003ctd\u003eSemi-Closed Deck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e575 BHP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePistons\u003c\/td\u003e\n\u003ctd\u003eOutfront Spec CP Forged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Dish\u003c\/td\u003e\n\u003ctd\u003e22cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnecting Rods\u003c\/td\u003e\n\u003ctd\u003eOutfront Motorsports H-Beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearings\u003c\/td\u003e\n\u003ctd\u003eKing Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrankshaft\u003c\/td\u003e\n\u003ctd\u003eNew OEM Subaru Black Nitrite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Halves\u003c\/td\u003e\n\u003ctd\u003eNew EJ257\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNew EJ257 case halves\u003c\/li\u003e\n\u003cli\u003eOutfront Spec CP forged pistons\u003c\/li\u003e\n\u003cli\u003eOutfront Motorsports H-beam rods\u003c\/li\u003e\n\u003cli\u003eKing Performance bearings\u003c\/li\u003e\n\u003cli\u003eNew OEM Subaru Black Nitrite crankshaft\u003c\/li\u003e\n\u003cli\u003eRear covers\u003c\/li\u003e\n\u003cli\u003eRear seal\u003c\/li\u003e\n\u003cli\u003ePin plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e575 EJ257 Short Block\u003c\/strong\u003e is designed to provide a stronger foundation than a factory EJ257 short block. Forged pistons and H-beam connecting rods are suited for increased cylinder pressures and higher-output turbocharged applications, while the semi-closed-deck case retains the factory EJ257 architecture. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRecommended Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubaru STI builds\u003c\/li\u003e\n\u003cli\u003eHigh-horsepower street cars\u003c\/li\u003e\n\u003cli\u003eTurbocharged performance builds\u003c\/li\u003e\n\u003cli\u003eTrack and competition vehicles\u003c\/li\u003e\n\u003cli\u003eEJ257 engine replacements\u003c\/li\u003e\n\u003cli\u003eBuilt EJ257 applications\u003c\/li\u003e\n\u003cli\u003ePerformance and motorsport builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e575 BHP rating is the manufacturer's stated rating\u003c\/strong\u003e. Actual engine output and reliability depend on the complete combination, including the cylinder heads, head studs, head gaskets, turbocharger, fuel system, engine management, tuning, and operating conditions.\u003c\/p\u003e","brand":"Outfront Motorsports","offers":[{"title":"Default Title","offer_id":43106069610592,"sku":"OUT-SB-575","price":4499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/SB-S1_8cdb5217-5da4-40e5-9057-b49ad90d63b4.jpg?v=1787931271","url":"https:\/\/www.importimageracing.com\/products\/outfront-motorsports-575-ej257-shortblock-subaru-sti-2004-2021","provider":"Import Image Racing","version":"1.0","type":"link"}