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

The 455's Achilles' heel is a poor oil return system. ... and the dreaded screech of metal-to-metal contact bellows from the engine compartment, driving an Olds owner to tears.

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 ...

There are people that will tell you that the 455ci Oldsmobile Rocket motor makes a better street engine than a race motor. In truth, a stock 455 does have a couple of drawbacks that are ...