The original owner ordered this Chevy C10 with a heavy options list. It is the upscale Silverado version, equipped with the top-of-the-line engine for 1976, the 454 Big Block V8.

He did all the rebuild himself, except the machine shop work, and put it under the hood of the C10. 454 engine built by John Szwarc. He claims 600 horsepower for it. (Photo: John Szwarc) ...

Standard 1975 Chevrolet C10 models came with the automaker’s reliable 250 cubic-inch inline-six engine, while the equally bulletproof 350 cubic-inch V8 was also offered.