Ok so the time has come for me to sell these on the open market. I acquired these around a year or so ago from a dealer who was retiring and no longer servicing saws.
These are aftermarket Vintage RMC (Rocky Mountain Chainsaw) cylinders that were manufactured in Italy long ago. These are NOS parts, some are a little dirty, but I assure you that they have never been used.
I have been selling these to saw engine re builders around the country for the past 12 months or so. I have had no complaints. No I do not have any big bore versions left of this. The only ones I have left here are std bore 56mm. I only have cylinder heads available. I do not have any more pistons. I see them listed here on ebay and amazon for purchase if you need a new piston.
Feel free to ask questions. The best offer option is up for those of you who would like more than 1 cylinder. THANKS!