Thanks, Gerry

I have two GM 151s. One came from an '82 Jeep CJ5 and the other one came from what I think was a '79 an AMC Spirit. They both have Chevy I-6/SBC bellhousing flanges. I haven't torn them down, yet, but believe they have the split rear main seal type.

I also have a '69 153 (3.25") crank and same year head with 1.94 intake and 1.69 exhaust stainless swirl-polished valves. The head has been pocket-ported, but with no radical port work.

I'd thought of using a 151 block, with the crank and head from the 153, to build a 163 inch engine. However, I don't know which rods and pistons to use.

I built a Mercruiser/Chevy II 153 engine for a Chevette. It was fun to drive and had a lot of zip, but this is the first time I've thought about mixing parts to come up with a bigger engine.

I've read about the heavy-duty blocks you have and if I wasn't retired I'd HAVE to have one! As it is, I have to do a lot of scrounging, like when I was a kid.

Thanks for taking time to answer. Dennis


Lord, let me live long enough to do all the projects I have planned!