I had an engine shop rebuild my 327 small-block Chevy. Everything was brand-new, including the rods, pistons, crank, cam, and heads. After fire-up and with 100 miles on it, it washed a ring and ...

For the last several years, many engine builders and individual hotrodders have experienced a raft of seemingly unexplained flat-tappetcamshaft lobe failures. As one engine builder puts it, "I've ...

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 ...

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, ...

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 ...

The Cummins 6.7L turbo diesel engine entered its fifth generation in 2019. In addition to improved output of up to 400 horsepower and 1,000 pound-feet of torque, the new engine's valve train featured ...