The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

At the very least, tearing down, inspecting, and cleaning hydraulic lifters is good engine hygiene that can contribute to long service life in your classic car. It’s also a great way to inspect the ...

Once upon a time, most car engines used solid or mechanical lifters. But unlike most fairy tales that begin that way, there was no lasting happy ending for them. Hydraulic lifters first appeared in ...

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 ...

Owners of 5.7 and 6.4 Hemi V8s are not imagining things when they hear that sharp tick at idle or face a four-figure repair ...

The Vacuworx HL Series Hydraulic Lifters are designed to improve safety, boost productivity and reduce operating expenses when moving and installing concrete road barriers up to 30 ft (9 m) long and ...

We may receive a commission on purchases made from links. Decades ago, when cars and truck engines used solid lifters, a cacophonous drivetrain was to be expected. However, solid lifters were phased ...

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, ...

I have a dealer repair bill for $3,751 for replacing 12 hydraulic valve lifters in the six-cylinder, 200-cubic-inch engine in my 1966 Ford Mustang. The dealer's shop people insist that the head was ...