When we think of Martin Sheen, visions of his presidential poise on The West Wing come to mind. But before he graced our screens as President Bartlet, Sheen revved things up in the 1974 cult classic ...

Chevrolet debuted a new overhead-valve V8 engine in 1955 with a 265-cubic-inch ... The Powerstroke 6.7-liter diesel is currently in Ford’s lineup and features emission-reducing technologies ...

The Ford 4.6L engine revolutionized ... 1991: 4.6L 2-valve SOHC V8 introduced in the 1991 Lincoln Town Car 1993: The 4-valve Dual Overhead Cam (DOHC) version of the Modular engine made its debut ...

Many gasped when Ford switched its V8 engines in the F-150 to an overhead valve cam (duh!) design, and the debate about whether it produced a better engine is still ongoing. Nevertheless ...

You'll be hard-pressed to find an overhead valve — also known as a pushrod — engine in anything outside of a General Motors LS/LT V8 or one of Stellantis' Hemi V8s. Everything else is a part ...