Sometimes follow-up questions need to be asked to help other posters understand the context. That was the case here as far as I'm concerned.

The series of motors that includes the 250 all use the same bell-housing pattern at the rear and mostly the same engine mounting. The 292 is a little different so we'll ignore it for now.

The 250 can be mounted where the 230 came out and actually the engine mounts and bell-housing are the same as a side-mount Chevy V-8. You don't have to worry about the steering because the motor is narrow like the original six, and the mount kits you can buy for a V-8 make the swap straight-forward.

The mounts are completely different from the early Chevy/GMC motors.





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...