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 ...

Pontiac's 455 ci V8 engine was its largest ever, ideal for muscle cars in the 1970s for torque and lower emissions. The 421 ...

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 ...