I got my block and rotating assembly back from the shop, balanced, assembly washed and ready to assemble. I got 7 of the KB pistons mounted , ringed (yeah, gapped the rings) and found the eighth piston was a clone of the 7th. They are a older set of the 107's. So I have that on the shelf now and a new one in it's place. The new one has the same flycut for the intake and exhaust. They're trying to save us from ourselves..