{"product_id":"dual-valve-spring-kit-for-ls-engines","title":"Dual Valve Spring Kit for LS Engines","description":"The BTR Platinum .660\" Lift Dual Spring Kit (SK001) is engineered for LS engines utilizing stock rocker arms, making it suitable for a wide range of applications from daily drivers to high-horsepower builds. This kit is designed to ensure valves remain precisely positioned according to the camshaft's requirements, whether for a mild cam, a 600 hp naturally aspirated stroker, or a 1000 hp turbocharged engine.\n\nThis kit is a direct fit for all 15-degree LS heads, including popular models like the LS1, LS2, LS3, LS4, LS6, L76, L92, L99, LQ4, LQ9, L33, and LSA. It can also be fitted to LS7 heads with the addition of approximately .045\" of spring shim, using part numbers SS015 and SS030.\n\nIncluded in the kit are sixteen SP001-1 dual polished springs, thirty-two VL7°8MM-1 locks, sixteen titanium (SR001-1) or chromoly steel (SR001S-1) retainers, sixteen locators for stock or bronze guides, and sixteen VS LS valve seals. The spring specifications are 155 lbs at 1.780\", 380 lbs at 1.180\", and 400 lbs at 1.130\", with coil bind occurring at 1.070\".\n\nIt is important to note that this kit will not fit LS9 engines. For LS9 heads, part number SK006 should be used.","brand":"BTR","offers":[{"title":"Default Title","offer_id":52688545284408,"sku":"SK001","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/664201821.png?v=1784890769","url":"https:\/\/store.motormia.co\/products\/dual-valve-spring-kit-for-ls-engines","provider":"MOTORMIA","version":"1.0","type":"link"}