Hundreds of thousands of General Motors truck and SUV owners face a costly and potentially dangerous problem: the 6.2-liter ...

There are very few sounds sweeter to a gearhead than a small-block spinning past 8,000 rpm. For anyone who appreciates internal-combustion engines and horsepower, a race engine spinning at high rpm is ...

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 ...

Owners of 2014 through 2024 Chevrolet Silverado and GMC Sierra trucks equipped with GM’s L87 6.2-liter V8 are facing costly ...

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 ...

Hydraulic roller cams have plenty going for them, including power, reliability, and reduced friction. Heck, even the OEMs have embraced the benefits of hydraulic roller cams. Often thought of as the ...