I have a 270 and it performs great in normal driving. Pulling a trailer it doesn't have the grunt I want, but that is probably my 3.08 gears as much as anything.

I don't think the big GMC motors are as hard to find as you might think. I've had a couple come and go, and have found others without looking.

Just let people know you're interested, and if you're a little patient you'll have one.


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...