When it comes to valves, Ford Motor Company has clearly concluded that three per cylinder are better than two, and perhaps even better than four, when costs are dialed into the equation. We can hardly ...

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 ...

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 ...

An internal combustion engine is like a big air pump, and the more air you can get it to pump, the more torque and horsepower it will make. Things like bigger camshafts, aftermarket intakes and ...