To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Part I in the October 2002 issue began to unravel the mystery of deciphering airflow numbers that are derived from flow bench testing. We addressed the question, "Why test for airflow?" and detailed ...

HeadGames Motorworks puts the Gen 4 F-150 cylinder head on the bench for a comprehensive Coyote head flow test.

One of the problems with running the proverbial ultimate cylinder head test that we did a few years back (a.k.a. MM&FF's Ultimate Guide to Cylinder Heads), is that the performance world continues to ...

Cylinder head failures are very dangerous and very expensive, so it's important to recognize the key signs early. Here's what ...

Horse Sense:New small-block cylinder heads just keep coming. We've lost count, but there are, or have been, around 40 aftermarket cylinder heads since the 5.0 H.O. engine made the scene. A long time ...