I have an ever-increasing inventory of used parts from Polaris, Yamaha, Ski-Doo and Arctic Cat Sleds. Cylinder walls are in good shape, without scratches. make Supersized seem small. Get images that.
It was not standard size, either worn or honed too much. +.015 over bore at top
+.020 over bore at bottom.
Had to bore +.030 over to make work. Would have just used my original cylinder if I knew I had to bore it that much and buy a new correct size piston.