Setting valve lash has nearly become a lost art. Hydraulic lifters are so prevalent and so efficient that many enthusiasts resort to the old way or doing it—engine running, oil spewing everywhere. Let ...

Before the implementation of hydraulic lifters to keep the engine's valves in proper working order, regular adjustment was required to maintain the critically necessary clearance in the valvetrain.

You've spent more money on your engine than any other single component of your race car. And if you are like most racers, you're fine with that as long as your engine makes good power and doesn't ...