It is from burned oil crusty carbon. I won't give it to the guy wanting a driver. I'll keep it to play with. The bores are slick and I not sure new rings will seat well without scuffing them up a bit. Not real sure they will seat anyway. I'm interested to see what cam is in it. Being decked .040" with the bore I think it was someones hot build. The pistons are clearly stamped .080. Where did those come from?
Maybe I should try to contact the guy I got it from. He was getting ready to move and gave me a bunch go parts because I had room back then.
