Pushrod engines typically use two valves per cylinder, and as a result this engine style is often mocked when used in modern vehicles. Fewer, larger valves results in more reciprocating mass which can ...

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 ...

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

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 ...

Ford fans do not argue about much more fiercely than they do about pushrod versus modular V8s, because that split defines not just different engines but different eras of Mustang and truck performance ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its next generation of pushrod engines. The application, published by the U.S.

Joel was previously an editor at Autoblog for nearly a decade, covering cars from humble economy hatchbacks to high-end sports cars. He has extensive driving experience with plenty of track time, and ...

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.

The rocker arm employs the use of a fulcrum or pivot to increase the cam lift by a given ratio. That increase in lift is the result of moving the pushrod pivot point closer to the fulcrum. That ...