Only 110 units of the 50th Anniversary Trans Ams were built by Pontiac with the big 7.5-liter V8 and T-tops, but none had a ...

The Super Duty 455 was well beyond that. Starting with Pontiac’s largest-displacement engine, the block was ... even though ...

First introduced in the '70s, the 7.5-liter Pontiac 455 V8 would be used in many of the company’s models, such as the Grand Prix and Firebird. Unfortunately, like most V8 engines of the era ...