Despite the GM 454 and Pontiac 455 being within a cubic inch of each other, and both being GM brands, the two engines are ...
PC Classic Cars, a Sherman, Texas-based old-school dealership, has an interesting proposal for GM fans in general and Chevrolet truck enthusiasts in particular ...
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Why the SP 454 remains one of GMC’s wildest moves
GMC’s Sprint SP 454 arrived during Detroit’s peak muscle era, yet it slipped into obscurity while its Chevrolet cousin stayed ...
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