{"product_id":"cid-lt1-lt4-bare-cylinder-heads-with-valve-and-spring-options","title":"CID-LT1\/LT4 Bare Cylinder Heads with Valve and Spring Options","description":"\u003cp\u003eCID CNC PORTED CYLINDER HEADS FOR GEN V LT1\/LT4 APPLICATIONS\u003cbr\u003e\nThese CID cylinder heads come from Gwatney Performance with LT1 spec intake and exhaust valves and a 55cc combustion chamber on the LT1 castings, while LT4 spec intake and exhaust valves and a 62cc combustion chamber are offered with the LT4 castings. When you add a BTR spring kit to these, you will get a combination that will close in on the 700hp mark naturally aspirated with a properly sized camshaft and intake manifold.\u003cbr\u003e\nNOTE: Check piston to valve clearance before final installation!\u003cbr\u003e\nLIFT\u003cbr\u003e\nFLOW\u003cbr\u003e\n0.300\u003cbr\u003e\n227\u003cbr\u003e\n0.400\u003cbr\u003e\n291\u003cbr\u003e\n0.500\u003cbr\u003e\n328\u003cbr\u003e\n0.600\u003cbr\u003e\n336\u003cbr\u003e\n0.700\u003cbr\u003e\n346\u003cbr\u003e\n0.800\u003cbr\u003e\n354\u003cbr\u003e\nSK007 valve spring kit components:\u003cbr\u003e\n- SP001-1 valve springs (QTY 16)\u003cbr\u003e\n- SR008-16 titanium retainer set (QTY 1)\u003cbr\u003e\n- SL565060-16 spring locator set (QTY 1)\u003cbr\u003e\n- VS LS KIT valve seal set (QTY 1)\u003cbr\u003e\n- VL7°8MM-32 valve lock set (QTY 1)\u003cbr\u003e\n- BS015-16, .015 thick shim set (QTY 1)\u003cbr\u003e\nSK013 valve spring kit components:\u003cbr\u003e\n- SP014-1 valve spring (QTY 16)\u003cbr\u003e\n- SL565045CON-16 valve spring locator set (QTY 1)\u003cbr\u003e\n- VS LS KIT valve seal kit (QTY 1)\u003cbr\u003e\n- VL7°8MM-32 valve lock set (QTY 1)\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":52041530540326,"sku":"CID-LT1\/LT4 CYLINDER HEAD BUNDLE","price":3699.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/cid-lt1cnc_1.jpg?v=1770811742","url":"https:\/\/billysspeedshop.com\/fr\/products\/cid-lt1-lt4-bare-cylinder-heads-with-valve-and-spring-options","provider":"Billys Speed Shop","version":"1.0","type":"link"}