The Olds and Pontiac 455 engines were both big-block V8s, but they had differing power outputs and development philosophies.

The engine in question was Pontiac's largest displacement V8, the 455-ci (7.5-liter), which debuted a year earlier in standard and HO (High Output) forms.

Ted Fox, Owner, Scooter's Garage New Parts Unveiled Ted Fox Showing Parts Attached to a Pontiac Engine The Tiger Cub Initiative promises to be an exciting innovation for Pontiac owners nationwide ...

The Oldsmobile 442, a legendary muscle car, emerged in the mid-1960s, riding the wave of high-performance enthusiasm ignited by the Pontiac GTO. Initially an option package for the Cutlass and F-85, ...

The 455 V8 was Pontiac's top-of-the-line large displacement engine in its powerful muscle cars of the '70s. Iconic names like the Pontiac GTO Judge and the Buick Grand Sport also used variations ...

1979 Pontiac Trans Am Restoration Project (Pontiac) This particular Trans Am, however, is far from ordinary. Its original powerplant has been replaced by a formidable 455 cubic-inch V8, enhanced with ...

The Oldsmobile Rocket 455 V8 engine met the same exact fate as the Pontiac 455, leaving the marketplace by the end of 1976. When efficiency became a top priority, these massive 455 V8 engines just ...

The larger of these two motors graces the engine bay of this here GTO, for sale via Cerillo Motor Car Company in Clifton Park, New York, a suburb near Albany. This particular Pontiac 455 V8 is ...