The rules in some racing classes restrict competitors to running hydraulic valve lifters. Cheaters have been known to run hydraulic lifters on a mechanical (solid) cam profile. Solid cam profiles ...

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 ...

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 ...

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 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 ...

With horsepower seemingly growing on trees these days, picking a set of high-flow cylinder heads for your engine combination is the easy part. A mother load of rotating assemblies and aftermarket ...

Deep in the New Mexico desert sits the Very Large Array radio telescope. The VLA is different from many other telescopes in that it's not just a single installation, but is made up of 27 giant radio ...