ive got this 65 gmc pickup that im fixing up into a muscle truck. it had a 350 in it when i bought the thing. i just tore into it thinking it needed some some rings. turns out its got multiple broken pistons, and the tops of the pistons are stamped 080. does this mean its bored .080 over? i didnt know that was possible. anyhow, im pretty sure this motor is junk. i was planning on throwing a few bucks into it so the truck would be driveable. i've got another 350 out of a late 70's pickup. its got 4 bolt mains and as far as i know never been rebuilt. i was planning on saving up and building this motor for power while i finish the rest of the truck. now i dont know what to do. should i just rebuild the thing as cheap as possible so i can get it moving and upgrade it in the future. or buy someone else's motor that runs and keep the engine i've got to rebuild later on. there are a couple in my local trader paper for 400-600 in good shape. and one 327 running for $350. what would be the best plan of attack. i'd like to get this thing moving for under $500 if possible. sorry for the long post.