Pontiac's 455 V8 was designed with one goal in mind ... On the other hand, Chevy also offered the LS7 crate engine, which wasn't street legal but was easily one of the most powerful V8s of ...

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 ...