Kibblewhite High Performance Valve Spring Kits for OEM Retainers

When designing these high performance valve spring kits for OEM retainers, Kibblewhite took a scientific approach to ensure the compatibility of the valve spring's force and natural frequency with the cam profile, valvetrain mass, system harmonics, and the engine rpm. They are made of some of the best chrome silicon valve spring wire found in the world and are put through a manufacturing process that includes heat-treatment, stress-relief, and shot-peening, making them the best high performance valve spring kits for OEM retainers on the market.