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...
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...
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...
Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valvesExtends the life of the valvetrain and intake components by...
Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valvesSpring kits come complete for one...