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The Pontiac V8 built to bury Chevy's LS6 454
Pontiac's 455 H.O. and 455 Super Duty V8s were built to beat the Chevy 454 LS6 and became legendary, short-lived muscle car ...
The muscle car era was already in its final days in 1973, but Pontiac wasn't quite done pushing the performance envelope. Backed by its new 455-cubic-inch Super Duty V-8, the brand was showing off a ...
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