This was and still is a common swap. My main concern with the GMC motor is that they are notorious for having cracked heads. My only GMC had a cracked head as were all the other heads I could find. Also get a Patrick's catalog, has lots of tips and how-to info on these motors.
www.patricksantiquecars.com
ph 520 836-1117


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed