{"product_id":"660-gen-5-lt4-dual-spring-kit","title":".660\" Gen 5 LT4 Dual Spring Kit","description":"The Texas Speed \u0026amp; Performance .660\" Gen 5 LT4 Dual Spring Kit represents the latest in valve spring technology, engineered for superior valvetrain control and durability in high-performance applications.\n\nManufactured in collaboration with PAC Racing, a recognized leader in valve spring innovation, this kit incorporates PAC's proprietary nano-peening process. This advanced technique tightens the molecular structure of the wire, increasing residual stress and improving the molecular bond. The result is significantly reduced chances of spring fatigue and failure, ensuring longevity and consistent performance.\n\nThe kit includes PRC Integrated Spring Seats \u0026amp; Valve Seals, Dual Springs, and lightweight Titanium Retainers. While it utilizes GM factory valve stem locks, these are not included in the kit and must be sourced separately. The springs offer a maximum lift of .660\" with a closed spring pressure of 160 lb. at an installed height of 1.810\", and an open spring pressure of 415 lb. at .660\" lift. The coil bind height is 1.015\".\n\nThis kit is specifically designed for Gen 5 LT4 engines from 2015 onwards. Its robust construction and advanced materials make it suitable for applications utilizing factory-style lifters, providing excellent durability and stability for a wide range of performance modifications.","brand":"Texas Speed","offers":[{"title":"Default Title","offer_id":52663967351096,"sku":"199-ISSLT4660SpringKit","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687144804.jpg?v=1784331342","url":"https:\/\/store.motormia.co\/products\/660-gen-5-lt4-dual-spring-kit","provider":"MOTORMIA","version":"1.0","type":"link"}