Lifters and camshafts are vital to your engine’s heartbeat, but design quirks, oiling issues, and neglect can make them the first parts to fail. From the infamous HEMI tick to metal shavings in your ...

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 ...

Basic engine education is much like basic sex education: There are hundreds of well-written, informative books on the subject but only a handful of the interested people are willing to expend the time ...

In a world without limits, camshaft designers have known for decades what profiles they'd like to grind. But real-world technological limitations-in terms of design feasibility, materials science, and ...

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 ...

It's been all the talk on internet forums, club meeting hangouts, and in enthusiast garages across the nation—the loss of zinc and other protective "barrier" chemicals in modern oil damaging ...