Collectors chase the GMC Sierra Classic 454 because it captures the last gasp of big-block torque in a square-body truck.

The proof of concept was built by the team in 1988, equipped with not only a computer-programmed hydraulic pressure system but also a concealed winch, a cab-mounted spoiler, high-beams, and a two-tone ...

GMC's full integration of the Sierra name into their full-sized truck line-up in 1987 included the one-ton capacity level 3500. The Sierra 3500 was the top capacity pickup was among the GMC vehicles ...