Looking to swap the SBC in my 89 suburban 4wd to a diesel. Reason for the swap, need more towing power, and MPG. I know I want a Cummins 4 or 6 cylinders.
I want Big block power, 250+ hp, and 350+ FTlbs . I’m ok with towing at 55mph as long as it will do it going up hill too.
MPG, 15-20...