{"product_id":"prc-aftermarket-lt4-312cc-cnc-ported-cylinder-heads","title":"PRC Aftermarket LT4 312cc CNC-Ported Cylinder Heads","description":"\u003cp\u003eFully assembled PRC aftermarket LT4 312cc CNC-ported cylinder heads for high-output Gen 5 LT4 combinations.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e312cc CNC intake runners\u003c\/li\u003e\n\u003cli\u003e62.5cc chambers\u003c\/li\u003e\n\u003cli\u003e2.165-inch titanium intake valves\u003c\/li\u003e\n\u003cli\u003e1.600-inch stainless exhaust valves\u003c\/li\u003e\n\u003cli\u003eTSP .660-inch PAC dual springs with titanium retainers\u003c\/li\u003e\n\u003cli\u003eCHE bronze guides\u003c\/li\u003e\n\u003cli\u003eSix-bolt casting compatible with standard GM four-bolt and aftermarket six-bolt LT blocks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Gen 5 LT4 engines, including Corvette Z06, CTS-V, and Camaro ZL1 applications. Verify direct-injection hardware, piston-to-valve clearance, pushrod length, supercharger-manifold compatibility, and chamber requirements before installation.\u003c\/p\u003e","brand":"Precision Race Components","offers":[{"title":"Default","offer_id":54635449778495,"sku":"PRC-SSLT4","price":3656.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/smgspeed.com\/products\/prc-aftermarket-lt4-312cc-cnc-ported-cylinder-heads","provider":"SMGspeed","version":"1.0","type":"link"}