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 ...

The global automotive tappets market exhibited moderate growth during 2015-2020. An automotive tappet, also known as valve lifter or cam follower, is a small automotive component inserted between the ...

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 ...

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 ...

On engines equipped with hydraulic tappets, zero lash at maximum tappet plunger rise can be determined by rotating the pushrod with your fingertips while slowly turning the lash adjusting nut. The ...

Many older cars have engines with flathead or overhead valves, and these designs also tend to more commonly used flat tappets for actuating the valves. Flat tappets place a unique demand on the engine ...

When it comes to upgrading small-block engines, camshafts are a popular choice for enhancing performance. Different camshaft types can significantly alter how an engine breathes and performs, offering ...