Up for bid is a used PTO side original piston, cylinder and cylinder head for 1972 Ski Doo Nordic 640ER. The snowmobile had about 1050 miles on it when the engine was torn down. The cylinder does have rust on the inside walls due to water getting in and seizing the PTO side. It would most likely require boring out or re-sleeving. The rings are currently stuck in the piston but should easily come loose with a little work. I did not try. The head is in great shape.
I have many other parts from this engine if you are interested contact me. I have the wiring harness and the cylinder piston and cylinder head from the PTO side also. The crankcase and crank are also available and will be listed in separate auctions. The stator and flywheel are also available as is the fan shroud with fan. I will combine shipping. See my other items for sale for other Ski Doo 640 motor parts. Some or all of these items may be useful for Ski Doo Alpine and Ski Doo TNT.
Contact me with any questions.