Hot-rodders share a common denominator, irrespective of brand loyalty: get from A to B as fast and as inexpensively as possible. Within the scope of the engine, that means focusing primarily on the ...

"Heads are everything." That's what Air Flow Research's Tony Mamo said to us in a recent phone conversation. "What to do with the heads is the most critical decision to make in any engine build." To ...

Now that we've explored the majority of simple, bolt-on parts for the S197 Mustang, the next logical place to turn our collective attention is to the inner working of the engine. And, no matter how ...

Cylinder head porting is an advanced area of car tuning, so to help you get around what it all means, we take a closer look at the sure-fire way to improve an engine’s performance potential. You may ...

Although the basic purpose of a valvespring is to close the valve while also ensuring that the valvetrain stays in contact with the cam lobe, it must perform this feat under grueling conditions that ...