[lovehamr]

The difference to me is the fact that the bores should be matched to the individual pistons. You don't just punch the holes to one size for set O' pistons or the clearances WILL be skewed. That being said, if they take an engine back and just throw another set of pistons in it, that just shows the lack of care with which their products are assembled on a day to day basis. If I had a 100k car (and I don't) the engine which went into it would be perfect, not a rebuilt rebuild. Any pro builders out there are invited to weigh in on this as well.