400 sbc 4-bolt main out of an 72 chevy impala block has 9000 miles on it. block need to be hot tanked, cylinders honed and deck needs to be planed comes with standard trans flywheel, harmonic balance, crank that needs .0010 taken off of number 1&2 connecting rod and all of the main bearing caps and the soup bowl pistons block is .0030 over. motor #3951511 engine suffix code T0125CKP call text or email Jeff @