What should the clearance be? I was talking to a guy that bores and hones cylinders to match the wiseco pistons amd offers it as a package he said he puts a .002 clearance. Is that right? Being a machinist and dealing with tight tolerences such as bearing fits i always allow metal to cool before i take my final cut or polish anymore off because as it heats it can grow .002 easily and then shrink back as it cools