The early 1990s were a great time if you were a muscle truck fan, with the release of the 1990 Chevy 454 SS and the 1991 GMC Syclone. Which one would you buy?

Vintage trucks that once hauled hay and hardware are now quietly trading for sports-car money, as collectors chase ...

Pontiac’s 421 Super Duty V8 has a marvelous story to tell. This is what it meant to the industry at the time and how its ...

GM's Twin Six V12 engine weighed just under 1,500 pounds. It was primarily used for commercial vehicles, including large ...