Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves
Extensive R&D on all applications to provide high-performance components that last longer than OEMSuper-clean silicon wire used in valve springs is ground, not shaved, and X-rayed at regular...
Black Diamond? valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond? valves feature...
Designed to out-perform and outlast the factory valve springsKit features lightweight, high-strength CrSi valve springs,H.T. steel base washers and titanium spring retainersComplete kit, everything...
Black Diamond? valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond? valves feature...