Cars are intricate machines that rely on a series of chemical and mechanical processes to work properly. When things go wrong with one of those processes, your car can start to make some strange ...

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 ...

A few days ago, we published a report highlighting the valve lifter issues some General Motors customers were experiencing in certain vehicles equipped with either its 5.3L V8 L84 gasoline engine or 6 ...

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 ...

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 ...

Sorry, solid lifters, you make a wonderful typewriter clack and allow for intoxicatingly high rpms, but you can't be surprised that manufacturers slowly moved to ...

Engine Masters episode 16, presented by Amsoil, will roll you flat with knowledge on roller vs. flat-tappet cams and lifters. At first glance, one might think that the reduced friction of the roller ...

A $850 Hemi V8 teardown uncovers a miracle: a failed part that didn’t destroy the entire engine.

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 ...

The new buzz for hot street engines are hydraulic-roller cams. These cams offer significant advantages for additional lift and more power when properly combined with the rest of the engine combination ...