{"product_id":"p2r-the-enforcer-j-series-race-cylinder-head-package-pair","title":"P2R PowerRevRacing - \"The Enforcer\" J-Series Race Cylinder Head Package (Pair)","description":"\u003cp data-start=\"218\" data-end=\"624\"\u003e\u003cstrong data-start=\"218\" data-end=\"234\"\u003eThe Enforcer\u003c\/strong\u003e cylinder head package is a complete drop-in, ready-to-run set of heads engineered to deliver a substantial horsepower increase. This same package has powered naturally aspirated J-Series engines to over \u003cstrong data-start=\"438\" data-end=\"459\"\u003e400 HP on M1 fuel\u003c\/strong\u003e and helped turbocharged setups push past the \u003cstrong data-start=\"505\" data-end=\"522\"\u003e1,000 HP mark\u003c\/strong\u003e. Perfect for both \u003cstrong data-start=\"541\" data-end=\"561\"\u003estreet and strip\u003c\/strong\u003e applications, these heads are built for serious performance.\u003c\/p\u003e\n\u003cp data-start=\"626\" data-end=\"1052\"\u003eEach set comes \u003cstrong data-start=\"641\" data-end=\"655\"\u003eCNC-ported\u003c\/strong\u003e, flowing \u003cstrong data-start=\"665\" data-end=\"681\"\u003eover 325 CFM\u003c\/strong\u003e, and fully equipped with premium components, including:\u003cbr data-start=\"737\" data-end=\"740\"\u003e✅ \u003cstrong data-start=\"742\" data-end=\"787\"\u003ePro Valve Racing Stage 3 Valve Spring Kit\u003c\/strong\u003e\u003cbr data-start=\"787\" data-end=\"790\"\u003e✅ \u003cstrong data-start=\"792\" data-end=\"838\"\u003eFerrea Competition Plus 36mm Intake Valves\u003c\/strong\u003e\u003cbr data-start=\"838\" data-end=\"841\"\u003e✅ \u003cstrong data-start=\"843\" data-end=\"890\" data-is-only-node=\"\"\u003eFerrea Competition Plus 30mm Exhaust Valves\u003c\/strong\u003e\u003cbr data-start=\"890\" data-end=\"893\"\u003e✅ \u003cstrong data-start=\"895\" data-end=\"917\"\u003eFerrea Valve Locks\u003c\/strong\u003e\u003cbr data-start=\"917\" data-end=\"920\"\u003e✅ \u003cstrong data-start=\"922\" data-end=\"945\"\u003eBronze Valve Guides\u003c\/strong\u003e\u003cbr data-start=\"945\" data-end=\"948\"\u003e✅ \u003cstrong data-start=\"950\" data-end=\"977\"\u003eHyper Stage 2 Camshafts\u003c\/strong\u003e\u003cbr data-start=\"977\" data-end=\"980\"\u003e✅ \u003cstrong data-start=\"982\" data-end=\"1010\"\u003eComplete Rocker Assembly\u003c\/strong\u003e\u003cbr data-start=\"1010\" data-end=\"1013\"\u003e✅ \u003cstrong data-start=\"1015\" data-end=\"1050\"\u003eCam Seals \u0026amp; P2R Billet Cam Caps\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1054\" data-end=\"1082\"\u003e🔧 \u003cstrong data-start=\"1057\" data-end=\"1080\"\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1083\" data-end=\"1280\"\u003e\n\u003cli data-start=\"1083\" data-end=\"1200\"\u003eYou must check \u003cstrong data-start=\"1100\" data-end=\"1129\"\u003episton-to-valve clearance\u003c\/strong\u003e before installation—minimum clearance required is \u003cstrong data-start=\"1180\" data-end=\"1197\"\u003e1mm (0.0393\")\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1201\" data-end=\"1280\"\u003eOnce installed and the engine is timed, a \u003cstrong data-start=\"1245\" data-end=\"1265\"\u003evalve adjustment\u003c\/strong\u003e is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTakes 4-6 Weeks to ship.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/6p8ue0tMgak?si=ROCUnifBgHN2-WCe\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"P2R PowerRevRacing","offers":[{"title":"J30A4","offer_id":48947780747418,"sku":"PH005-RCA","price":6749.99,"currency_code":"USD","in_stock":true},{"title":"J32A2","offer_id":48947780780186,"sku":"PH005-P8E","price":6749.99,"currency_code":"USD","in_stock":true},{"title":"J32A3","offer_id":48947780812954,"sku":"PH005-RDB","price":6749.99,"currency_code":"USD","in_stock":true},{"title":"J35A4","offer_id":48947780845722,"sku":"PH005-P8E","price":6749.99,"currency_code":"USD","in_stock":true},{"title":"J35A8","offer_id":48947780878490,"sku":"PH005-RDJ","price":6749.99,"currency_code":"USD","in_stock":true},{"title":"J37A1 (07-09)","offer_id":48947780911258,"sku":"PH005-RYE","price":6749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/3044\/8852\/files\/20250305_110603_enhanced.jpg?v=1785764943","url":"https:\/\/throwdownperformance.com\/products\/p2r-the-enforcer-j-series-race-cylinder-head-package-pair","provider":"Throwdown Performance, LLC","version":"1.0","type":"link"}