What year C20? Depending on the year your ratio choices may be very limited unless you swap the entire rear axle.

There are a number of versions of the 396, starting at 325 horse up to 375 and more. If you have the milder motor its a strong motor but nothing scary.

I have a newer big block pickup and sure love that pulling power!


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...