Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

The three most common cam-drive systems are (from left to right) the gear drive, the double-roller chain and the flatlink timing chain. Not shown is the cogged belt drive, which is mainly used in full ...

Your car's camshaft — or camshafts if your vehicle has a DOHC engine — is a vital component that plays a critical role in the internal combustion process. Its job is to synchronize the opening and ...

A big reason that the small-block Chevy was so popular with the Bow Tie crowd was because for decades it changed very little, making upgrades and interchangeability easy. The same can be said for the ...