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 ...

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 ...

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 Vacuworx HL Series Hydraulic Lifters are designed to improve safety, boost productivity and reduce operating expenses when moving and installing concrete road barriers up to 30 ft (9 m) long and ...

I have a dealer repair bill for $3,751 for replacing 12 hydraulic valve lifters in the six-cylinder, 200-cubic-inch engine in my 1966 Ford Mustang. The dealer's shop people insist that the head was ...

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 ...

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 ...