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 ...

This engine has a transparent cylinder so that combustion can be observed. Two components of cylinder volume are important: (a) The "Displacement volume" is the volume displaced by the piston as it ...

The 4-cylinder engine seems less romantic than the larger V6 and V8, but don't sell it short. It has edges over its bigger ...