I can't speak to the power question, but the GMC was the hot rodder's favorite years ago.

The GMC is also made of a better alloy and is likely to last longer. Though I'd be surprised if you'll drive the truck enough miles to wear either motor out once its rebuilt properly.


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...