A small gap with big importance in the performance and health of an engine - here's everything you need to know.

Without a doubt, solid cams carry a certain mystique. In the musclecar days, solids were factory-fitted in some of the hottest iron out of Motown, including the early street Hemi. There was a little ...

In 20 years, the hydraulic roller lifter has gone from a hot rodding oddity, to plain vanilla common fare. In those 20 years, one aspect that's changed very little is the rpm capability of the basic ...

COMP Cams Explains the Pros and Cons of Solid, Hydraulic, Flat-Tappet, and Roller Cams, and the Advanced Technology that makes them all Work. With horsepower seemingly growing on trees these days, ...