High power, or low weight? We're watching that all play out as a 1968 Oldsmobile Cutlass W31 and a 1972 Pontiac GTO 455 HO go ...

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

Very few engines ever came close to the power and torque the Chevy 454 was able to produce, yet it found its worthy opponent in another GM engine: the Pontiac's own High Output 455 V8. These two ...

The videographer behind the "Cars and Zebras" channel on YouTube again brings us feisty yet vintage action from Mid-Michigan ...

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 ...