If you anticipate advancing or retarding the cam, you should check valve-to-piston clearance in both scenarios before assembling the engine.

At the closest piston approach point to the valve, clearance can change more than 13 percent with a big cam and/or a hard-core engine originally built to tight clearances.

Checking piston-to-valve clearance may seem like an esoteric procedure that only high-performance engine builders perform.

In this article, we will talk about getting valve clearance adjustments. We will start with explaining how your engine works, then get to the valves themselves, talk about the frequency of the ...

The Honda Chimney Engine represents a bold leap forward in engine technology, integrating a valve within the piston and ...

Check out this tech article called Piston Head Clearance Guide, brought to you by the experts at Chevy High Performance Magazine.

Both noises tend to abate as the engine warms up. With piston slap, the aluminum piston skirt expands a bit as it heats up, eliminating the excess skirt-to-wall clearance.