{"product_id":"mast-cylinder-heads-black-label-ls3-240cc-63cc-chamber-bare-single-510-201","title":"Mast Cylinder Heads - Black Label LS3 - 240CC - 63CC Chamber - Bare - Single","description":"\u003cp\u003eMAST CYLINDER HEADS - BLACK LABEL LS3 - 240cc - 63cc CHAMBER - BARE - SINGLE - 510-201\u003cbr\u003e\n• Easy bolt on to convert your GM Gen III to GM Gen IV head technology\u003cbr\u003e\n • Mast Dual (Large Bore) and .650 lift beehive valve springs\u003cbr\u003e\n • Accepts LS3\/L92 valve springs, rocker arms, and intake manifolds\u003cbr\u003e\n • Outflows any aftermarket cathedral cylinder head on the market\u003cbr\u003e\n • Uses a 2.080\" intake valve and 1.600\" exhaust valve\u003cbr\u003e\n • Has a 62cc combustion chamber standard\u003cbr\u003e\n • Has a deck thickness of .750\"\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":52041654862118,"sku":"510-201","price":1425.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/m2_510-201_88.jpg?v=1770810393","url":"https:\/\/billysspeedshop.com\/fr\/products\/mast-cylinder-heads-black-label-ls3-240cc-63cc-chamber-bare-single-510-201","provider":"Billys Speed Shop","version":"1.0","type":"link"}