The Super Duty saw one more act on the Pontiac Trans Am stage in 1974, although the 455-cube V8 carried on until 1976. The 1974 Pontiac Trans Am SD 455 was, in essence, the very last of the high ...
Pontiac not only kicked off the muscle car craze but took it to new heights ... the 1973 Trans Am. Thanks to a small group of enthusiastic engineers, Pontiac unleashed the 455 Super Duty, which ...
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