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

For instance, General Motors once owned both Pontiac and Oldsmobile, and each company had its own distinct 455 V8 engine. You might think that GM would want to standardize across all its brands as ...

The last high-performing pony car from the Golden Age was the 7.5-liter-powered Pontiac Trans Am from 1974, with less than 1,000 produced ...

while the SJ's 455-inch engine held steady at 250 horses. V8s disappeared from the Grand Prix later in the '70s, but the model persisted into the 21st Century. For 2005, Pontiac introduced the ...

Pontiac never officially dubbed the engine the Ram Air III ... GM lifted its silly ban in 1970, which unleashed the 455 under GTO and Firebird hoods, but in 1969, the Ram Air IV salvaged the ...

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 ...