Comp Cams 26925TS-KIT .650" Lift Dual Valve Springs Kit for GM Gen III IV LS 4.8 5.3 5.7 6.0 6.2 EnginesThis Dual Valve Spring Kit for LS engines includes carefully matched Dual Valve Springs, tool steel retainers, locks, seals and spring seats. With a . 660" maximum lift, these COMP Cams Dual Valve Springs for race applications are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter the application. The dual spring