Horsepower and torque are all about cylinder pressure. Compression ratio, cam timing, cylinder head flow, and all the rest of the goodies that go into an engine aren't worth much if what enters the ...

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 ...

Having tested endless aftermarket and ported stock LS cylinder heads for HOT ROD, it seemed odd that the stock stuff was never included. A test of the popular factory cylinder heads has been a long ...