Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Setting valve lash has nearly become a lost art. Hydraulic lifters are so prevalent and so efficient that many enthusiasts resort to the old way or doing it—engine running, oil spewing everywhere. Let ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...

Since the 1950s, some motorcycles, notably ones from Ducati, have used desmodromic valvetrains in their engines. Why is this ...

If we tell you that some folks take engine components made with a highly explosive metal, put them under the hood in one of the hottest parts of the motor, and then rely on those parts to actually ...