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Performance Research ProXtreme valve train components are tested on our custom built spin fixture. Big block and small block valve train assemblies can be tested up to 11,000 RPM. The valve curve of customer’s parts can be plotted and compared to the customer’s valve train profile. In the same way we can test our own parts and compare actual physical test to the original computer models.
Our Goal • Computer Design • Computer Modeling • Manufacturing • Physcal Testing Of Valve Train Components

Pro
Xtreme Valve Train Components
Ultimate Cam Cores • Flat Tappet Lifters • Flat Tappet Floater • Roller Lifters • Ball Roller Lifters
Valve Springs • Pushrods • Lash Caps • Rocker Arms • Valves • Wrist Pins