It is possible to run solid flat tappets on a hydraulic flat-tappet cam and even mechanical roller lifters on a hydraulic-roller cam. Putting solid lifters on a hydraulic cam will gain about 500 rpm ...

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 ...

An epidemic of cam failures has plagued owners of older cars recently. That part of the story is well established. The controversial part concerns the causes for the rash of prematurely worn camshaft ...