Now available, a set of eight X2 valves can be yours at the extraordinary value of $250 for a Small Block Chevy and you can take advantage of some professional valvetrain tutelage in the form of on-the-phone support from Marty Zimmerman.

Zimmerman is our X2 product manager and this valvetrain veteran has more than a quarter of a century of experience in the racing industry. In fact, his race resume includes work with a variety of engine and race teams, not the least of which is Evernham Motorsports at the NASCAR Sprint Cup level as a cylinder head professional.

X2 valves were born from Xceldyne, the leader in world-class racing Continue reading…