Any gearhead worth his or her salt knows that whether it's a SOHC, DOHC, or OHV engine, the camshaft is considered the brain of a four-cycle internal combustion power plant. The camshaft's profile ...

The typical four-stroke engine is made up of hundreds of parts. These parts are all designed and engineered to work together to make a prescribed amount of power, torque, engine longevity, and other ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

A.Incorrect rocker arm geometry is a common problem, however in most cases (assuming the rocker arms and other components are correct for the engine in question) it's easy to correct. According to the ...

This pump-gas, 470-inch big-block Mopar we recently started working on was originally built with factory-style, 1.50:1-ratio rocker arms. The 1.50 rocker arms were working just fine, but we decided a ...

The internal combustion engine, despite being a century-and-a-half old, is still an impressive marvel of engineering. There are several variations of engine design that have been experimented with ...