LS Dual Valve Spring Kit Up to .660in Lift

The LS Dual Valve Spring Kit designed for lifts up to .660 inches is purpose-built for LS engine builders and performance enthusiasts pushing their builds beyond stock parameters. Whether you're upgrading a Gen III, Gen IV, or Gen V LS platform, this dual valve spring assembly ensures reliable valve control at elevated lift heights, preventing valve float and maintaining consistent performance across aggressive cam profiles. This kit addresses the critical need for upgraded spring rates when factory springs can no longer manage the demands of high-lift camshafts, making it essential for any serious LS modification project.

Manufactured by CAM MOTION INC, a recognized innovator in LS engine valvetrain components, this dual spring configuration provides enhanced stability and reduces the risk of coil bind at maximum lift. The dual spring design allows for precise tuning of spring pressure curves, accommodating the aggressive velocity profiles created by performance camshafts while maintaining proper closure rates and minimizing noise. With a .660-inch lift capacity, this kit provides headroom for custom grinds and aftermarket cam profiles while maintaining safe operating margins for both street and racing applications. The compact 3.5 x 3.5 x 9.5-inch package and 4.7-pound weight make installation straightforward on any LS platform without requiring extensive cylinder head modifications.

This valve spring kit is ideal for LS engine builders, performance shops, and dedicated enthusiasts planning camshaft upgrades, turbo builds, or naturally aspirated performance modifications. Installation requires cylinder head removal and basic valvetrain familiarity, though professional installation is recommended to ensure proper spring pressure and seating. The kit is compatible with all LS variants (LS1, LS2, LS3, LS7, LS9, LT1, and related blocks) as long as your cam profile and lift specifications fall within the .660-inch maximum threshold. For any build incorporating aftermarket cams exceeding factory lift, this dual spring upgrade is a non-negotiable component for reliability and longevity.