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

Due to stricter government regulations, the era of unrestrained factory-built performance was coming to an end in 1971. However, GM's excitement division answered with the largest displacement engine ...

When Paul Rimsky-an IBM engineer from Mims, Florida, who was contracted to the NASA Saturn V project-bought his '71 455 H.O. Trans Am new on April 17, 1971, the words "classic," "rarity," and ...

A 1971 Trans Am that seems to need nothing but regular TLC is one of the hottest cars now selling at auction on eBay. The vehicle has already been refreshed, is fitted with the original 455 HO engine, ...

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 ...

The 1974 Pontiac Trans Am 455 Super Duty arrived just as the original muscle car era was collapsing under insurance hikes, ...

The Super Duty designation dates to Pontiac's successful early 1960s efforts in NASCAR and the NHRA, but it lay dormant for almost a decade. By 1970, the division's street machines, although wildly ...

Pontiac was a bastion of performance during the last days of the muscle cars from 1972 to 1974. While other brands made do with strangled, low compression engines, Pontiac figured out how to sustain ...

Jody Only is an author and photographer. Within the last five years in the auto industry, she has had bylines with TopSpeed, HotCars, LSXmag, Engine Labs, Chevy HardCore, and Street Muscle. She is a ...