Cylinder head porting is one of those garage mods that lives somewhere between speed-shop legend and flow-bench science. Also referred to as port and polish, the idea is simple: Open up the intake and ...

Porting cylinder heads is a blend of art and science, allowing more fuel and air into an engine's combustion chambers, and more exhaust gasses to exit, for a net increase of power and efficiency. And ...

Enthusiasts seem to be divided on just what constitutes a real street motor. On one side, we have the daily driver camp, where “street” is defined as the motor used to power your daily driver, as in ...

If, as has so often been said, an engine is nothing other than a simple air pump, then flow numbers alone should dictate the engines final output. From this it should follow that if it's just flow ...

Chevy's new bow tie head, left to right: 14011058 cast iron V8, 14011050 aluminum V8, and 14044802 90-degree V6. All share the same intake and exhaust port design philosophy, although there are some ...