{"product_id":"ch129421","title":"DART 129421 11° SHP PRO ALLOY HEAD ASSEMBLED GM LS3 266CC 70CC .650 LIFT","description":"\u003cp\u003eDart 11° SHP alloy cylinder head assembled (each)\n\u003cbr\u003eChev Holden LS3\n\u003cbr\u003e70cc chamber x 266cc intake runner\n\u003cbr\u003eInlet valve 2.165¨ x exhaust valve 1.625¨\n\u003cbr\u003e1.295¨ OD dual valve springs .650\" max lift\n\u003cbr\u003e750\" Deck thickness, O- ringed exhaust ports\n\u003cbr\u003eStainless Manley valves, PAC racing springs, locks, and retainers\n\u003cbr\u003eCNC machined intake and exhaust ports, as well as combustion chambers\n\u003cbr\u003eRetainins compatibility with factory LS3 valvetrain components, intake manifold mounting, and stock accessory mounting points\u003c\/p\u003e","brand":"Dart","offers":[{"title":"Default Title","offer_id":52032331186476,"sku":"CH129421","price":2095.4,"currency_code":"AUD","in_stock":false}],"url":"https:\/\/www.precisionintl.com\/products\/ch129421","provider":"Precision International","version":"1.0","type":"link"}