Rebuilding a set of 25-year-old 4-Valve Cobra heads seemed intimidating at first.

It was a lot easier than we thought, thanks to all-new valvetrain parts from Melling.

Our sister title's newest project car needs an engine overhaul.

EngineLabs' "A Boring 4-Valve" project will bring Project Apex back to life and prove there is nothing boring about it.

With Chevrolet's new Z06 reveal, comes new details on the new 5.5L LT6 engine that will spin to the moon.

With its radically different flat-plane crankshaft and dual overhead cams, it's unlike any Gen-V SBC ever.

This 3.0L EcoDiesel truck has been turning a lot of heads and other manufacturers are trying to play catchup.

Find out why there is so much excitement around this little diesel.