Heres a 3970010 block i checked and it is a 350. It ran perfectly but when i removed it and stripped it down i found 2 broken piston skirts which scratched 2 bores. Its bored 30 over with flat top pistons and forged rods. Crank is undersized .10 does not include cam or lifters. Has a gm 2 row timing chain set. has oil pump, timing cover i guess theres other stuff. Come take it away $50
call me 514 773 0507