{"product_id":"ls-660-dual-valve-spring-kit","title":"LS .660\" Dual Valve Spring Kit","description":"The Cam Motion LS .660\" Dual Valve Spring Kit is engineered for demanding high-performance and racing applications. This comprehensive kit is designed to support valve lifts up to .660\" while utilizing stock rocker arms, providing a significant upgrade for GM LS-series engines.\n\nThe kit includes premium polished dual valve springs with a 378 lb\/in spring rate, capable of handling 155 lbs of seat load at 1.780\" installed height and 400 lbs of open load at 1.130\". The components are designed for reliability, with a coil bind height of 1.070\". Spring seats are also included to ensure proper installation and function.\n\nIt is an excellent upgrade for those seeking to maximize the performance potential of their engine.","brand":"Cam Motion","offers":[{"title":"Default Title","offer_id":52687311110456,"sku":"CAMVSK143201","price":310.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660190709.webp?v=1784882495","url":"https:\/\/store.motormia.co\/products\/ls-660-dual-valve-spring-kit","provider":"MOTORMIA","version":"1.0","type":"link"}