Features: Built to OEM specifications. Direct bolt-on replacements.
Features: Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond intake valves. Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts....
Features: Complete valve shim kits make it easier to maintain your valve train. Forged from 4140 cold rolled steel, not sintered. Laser-etched size on each shim for identification. A great addition to any mechanic's tool box. Refills sold to dealers in...