In the pre-LS era, a typical small-block-powered street car would rev willingly to around 5,000 rpm. You could assemble a cam package for it—even using heavy components—and you probably wouldn't have ...

You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

Major and minor valve seat diameters are most easily checked for consistency with a pair of dividers during seat grinding operation. This assures proper seat width. The answer to the question posed by ...

While most Four-Valve modular owners are familiar with both B and C DOHC heads, few have even heard of the requisite A head that preceded them both. The first DOHC ...