I think it would be okay. You may find the accessories all mount different, but the motors are essentially the same externally and will fit in the same spot.

I would expect the 400 to possibly require more radiator.


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...