Like 3 miles on the 131 kit. It never left the shop, I wouldnt have made it home if it did. And the MoCo wanted screenshots of the ECM tuning screen looking for any reason they could find to deny the claim.
So, it was a manufacturing defect. I believe the cylinder tolerances was too tight after talking with the mech. I believe everything was done properly on his end after I interviewed him.
Both cylinders had scoring, back was not as prominent as the front but still had obvious scoring, no burn marks on the spigot was mentioned like the front cylinder had.
I am hoping the crank runout on the new bottom end is better than the original which had .004". Just squeaked by on what S&S calls allowable for their billet cam plate, oil pump, or gear drive cams which is .005". They used to say .003" was max allowable, but have recently changed that spec. I would like to see the new bottom end meet the old S&S standard, and most M8 cranks are within .005, the MoCo's spec is .010" or less.