I have a 60 Apache C10 and it came with a mildly built 350. The truck is a blast to drive, it's like a muscle truck I guess I would call it. It will spin the tires at takeoff very easily, not that I do that often. It would be a totally different truck with a 6 cylinder. If the truck had an original 6 in it I probably would have left it that way. I like it because it's like having the best of both worlds, a pick-up truck and speed.
Joe

54 Triumph TR2(rhd)needs total resto.
60 Apache 10 stepside shortbed
99 Excelsior Henderson