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 ...

Quite a few years ago, Iskenderian Racing Cams introduced a gear drive setup for small-block Chevy engines to replace the somewhat undependable chain drive system. The main drawback with Isky's ...

The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...