On engines equipped with hydraulic tappets, zero lash at maximum tappet plunger rise can be determined by rotating the pushrod with your fingertips while slowly turning the lash adjusting nut. The ...

The Lash Effect: Solid lifter valvetrains depend on accurate lash to make maximum power and dependability. Here’s how to do it right A properly tuned engine is an incredible mix of components all ...

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 ...