An engine builder ranks the classic 5.0-liter Ford Racing letter cams. His top choice helped create an 11-second Fox combo.

Overhead-valve internal-combustion engines, in which the valves are located in the cylinder head and actuated by a block-mounted camshaft via pushrods, go way back in automotive history. Production ...

Less than 70k miles in, a Ford Godzilla V8 shows rust, scored bores, and a ruined cam, highlighting known issues with the modern pushrod design. Yet reports of spark plug and lifter failures have ...

Correctly viewed, a pushrod engine's valvetrain assembly stands at the gateway of improved power. It is not a collection of components only intended to time and provide the correct valve motion.

In Final Eliminations at the 2013 AMSOIL Engine Masters Challenge, we had a battle of just two engine types: the Ford Cobra four-valves, which dominated the qualifying session, and the Chevrolet LS ...