580 bbc
I wish I would have looked at this part of RJ before I bought the 580. He lied about the amount of run time on it. It had 6 collapsed pistons and anywhere from .006-.013 wall to piston clearance. I have contacted him with no success. I asked for the money to buy pistons and to pay for the boring of the block. He denied and refused to do anything. I have the pistons in my trailer for when we do cross paths again at a track. Karma has a way of finding you, good or bad.