I don't know that the power pack heads were an option on a 2-ton truck.

'57 was the first year of the fuel injected 283 horse 283 and there was a dual four-barrel option for cars. But again I doubt very much any of this left the factory bolted to a 2-ton truck. Riding on one maybe...


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...