Chainsaw Repair

I got a question on these. I seen a jonsered 670 piston that had same part number for the 266.  Same pistons or mislabeled.   I dont know these well at all to know anything.

I can get a pic and part number I seen.

I can believe that as both 266's and 670's are 50mm closed port cylinder's. 670's are all closed port cylinders, I believe one or all of the 266's models are closed port cylinders as well. If I remember one of the versions of 266 had a funky intake, smaller than say a 268; but still was a closed port 50mm cylinder.

I think there was se & xp version's of the 266. Pretty certain the xp was closed port. Bob would know. AND come to think of it, that video we did have a 266 closed port cylinder as one of the cylinders we looked at.

Either way.....I tossed the 266 cylinder on one I built in favor of a 272xp cylinder! One of the easier cross builds on that chassis.