The 1971 Pontiac Trans Am fitted with the 455-cubic-inch V8 arrived at a turning point for American performance. Compression ...

There may not be any other Pontiac engine that harbors as much mystique as the Super-Duty 455. Introduced in '73 as a maximum-performance effort capable of sustained 6,000-rpm operation, it was ...

Pontiac was never good at letting go. Even as emissions strangled Detroit’s horsepower culture, the division that built the GTO refused to surrender quietly. And in 1975—against logic, policy, and ...

Q.I've got a '54 Olds with a 455 Olds out of a '69 Toronado. The engine is bone stock yet it has surprising power but as great as it runs there's something weird going on. For some time I've been ...

This 1971 Buick Riviera GS Gran Sport brings together bold styling, classic luxury, and the deep power of a 455 engine. What ...