Originally Posted by cobalt327
Any of the GM 455 engines can be a good choice. I've used Olds and Pontiac 455 engines and had good results from them both. The Olds was basically a stock rebuild from a wagon I put into a '76 Cutlass and even w/a car that big it was strong.
I installed a 455 Pontiac into a '78 K5 Blazer 4WD and it was a killer combo. I used an adapter plate and bolted the Pontiac up to the TH350 that was in it. The only compromise I had to make was because the owner didn't want to spring for a floor mounted shifter, so I had to run exhaust manifolds on it instead of headers. It cost a lot of power, but it might have helped the tranny to live.
Yup the 455 CID Oldsmobile and Buick and Pontiac V8's are just the ticket for this. Huge torque. !