{"product_id":"racing-660-platinum-dual-valve-springs","title":"Racing .660\" Platinum Dual Valve Springs","description":"The Brian Tooley Racing Platinum Dual Valve Spring Set (SP001-16) is a popular choice for LS\/LT applications, engineered to handle increased pressure from stroker motors or forced induction. These springs are polished for a clean appearance and ground to precise flatness, offering extreme durability and consistency for high-revving engines.\n\nDesigned for use with OEM-style rocker arms, this set provides 155 lbs of installed pressure at 1.780\" and 380 lbs of open pressure at 1.180\" (400 lbs at 1.130\"). The coil bind limit is at 1.070\". The springs feature an inner diameter of .676\" and an outer diameter of 1.306\".\n\nThis kit is recommended for use with stock rocker arms. For applications utilizing roller rocker arms, BTR suggests exploring the SP\/SK002 spring set. Locks, retainers, locators, and seals are available separately or as part of complete Platinum spring kits. This product is legal for sale and use in all 50 states, as it does not require an EO in California.","brand":"Brian Tooley","offers":[{"title":"Default Title","offer_id":52687289352504,"sku":"SP001-16","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661174216.webp?v=1784882292","url":"https:\/\/store.motormia.co\/products\/racing-660-platinum-dual-valve-springs","provider":"MOTORMIA","version":"1.0","type":"link"}