{"product_id":"platinum-dual-valve-spring-kit-w-locks-retainers","title":"Platinum Dual Valve Spring Kit w\/ Locks \u0026 Retainers","description":"The BTR Platinum LS Dual Spring Kit is a premium valve spring solution engineered for Gen III and Gen IV LS engines, suitable for applications ranging from daily drivers with mild camshafts to 1000 hp turbocharged builds. This kit ensures optimal valve control, keeping valves precisely where the camshaft intends them, which is crucial for maintaining performance and preventing valve float.\n\nDesigned as a drop-in kit for 15° LS heads, it also typically fits LS7 heads with the use of a .030” shim (Part # SS030). For those using roller rocker arms, a different kit (SK002) is recommended. It is important to note that this kit will not fit LS9 engines; part # SK006 is available for LS9 heads. The kit includes 16 dual polished springs, 32 locks, 16 retainers (choice of Titanium or chromoly steel), 16 locators for stock or bronze guides, and 16 valve seals.\n\nSpring specifications include 155 lbs at 1.780\", 380 lbs at 1.180\", 400 lbs at 1.130\", and a coil bind at 1.070\".","brand":"BTR Platinum","offers":[{"title":"Default Title","offer_id":52687277621560,"sku":"SK001","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660682673.jpg?v=1784882142","url":"https:\/\/store.motormia.co\/products\/platinum-dual-valve-spring-kit-w-locks-retainers","provider":"MOTORMIA","version":"1.0","type":"link"}