Heard from my CCKW friend he also pointed out that the trany is taller which would create a clearance problem with the floor.
Also found the Dyno info on the web on 40-50s vintage Chev 6 cylinder truck engines.
http://www.ssrfanatic.com/forum/f5/j...uggesti-26664/
Normal found information on the web disclaimer, NO GUARANTEE OF ACCURACY, but interesting.