COMP Cams Explains the Pros and Cons of Solid, Hydraulic, Flat-Tappet, and Roller Cams, and the Advanced Technology that makes them all Work. With horsepower seemingly growing on trees these days, ...

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 ...

Do you know how to choose a camshaft? This seems like a simple task because most of us understand what we want from an engine. However, propose this question to 50 Chevy fanatics and you’re bound to ...

There are pros and cons for each of the four camshaft styles—see which one is most appropriate for your engine. To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some ...

Picking the right valvetrain for your engine can be a daunting task. Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due to ...