{"product_id":"dart-11030153-ls-280cc-pro-1-cylinder-head-68cc-2-165-1-600","title":"DART 11030153 Pro1 LS 15 Deg (LS1 Compatible) Gen III Cylinder Heads","description":"\u003cp\u003eRecommended for engines with 4.000 inch bore or larger. Maximum competition, comp\/modified drag racing, circle track, and heavy duty applications. Dart's LS based PRO1 LS 15 Deg 280cc Aluminum rectangle port cylinder head (LS3 compatible) for GM LS series small block V8 engines take performance to the next level. Offers higher performance and more versatility than factory designs. The 15 Deg based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 280cc cylinder head retains stock valve angles, stock valve locations and stock accessory mounting holes to make installation easy. Virtually everything else has been improved.\u003c\/p\u003e\n\u003cp\u003eDart Pro1 LS 15 Deg (LS1 Compatible) Gen III Cylinder Heads\u003c\/p\u003e\n\u003cp\u003ePlease review Specifications and the detailed fitment table for notes and exceptions.\u003c\/p\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\u003ctable class=\"specs\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003ctd\u003eDart Pro1 LS 15 Deg (LS1 Compatible) Gen III Cylinder Heads\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"DART","offers":[{"title":"Default Title","offer_id":48923437531349,"sku":"ds_BGWK_11030153","price":2563.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/8999\/9829\/files\/DRT11030153.jpg?v=1722989710","url":"https:\/\/shdp.ca\/products\/dart-11030153-ls-280cc-pro-1-cylinder-head-68cc-2-165-1-600","provider":"SHDP Truck \u0026 Auto","version":"1.0","type":"link"}