I don't put any faith in the position of end gaps.
There is nothing to hold them, they are free to rotate wherever they want. I know, stagger them in installation, but what happens when it is running?
What is important is piston skirt clearance, round, ring end gap, land width clearance, pin clearance, everything you would normally check on a rebuild plus any weird manufacturing defects.
I once bought a new, from the dealer, 250 chevy 6 block with pistons and rings. The pistons had to come out to have the pins pressed. Pushed all but one out, it had to be hammered out! Press fit in the block! Sent the whole mess back for another.
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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