[Eagledriver]

You have to decide which way is right. There are arguments both ways. In most cases I've found the old rings to be a better fit than brand new Goetz rings. The end gaps were bigger on the brand new rings. Do whatever you are comfortable with. If you've checked the leakdown before you took the engine apart and know that you don't have any broken rings then you could just leave the pistons in the bores. If you don't know for sure then you'd be really pissed if you put it back together with a broken ring or worn out pistons.

-Andy