I purchased these along with with matching jugs from someone locally on craigslist.
I believe they came from a 76 CB750 and I want to put them in my 77
From what I have read possibly 350 pistons? only marking is the "ART" stamp.
I do measure ~65mm with a pair of calipers. which throws me off, I thought the cb350 were 64mm.
If they are any good I would like to know what Rings to buy to freshen it up.
any help would be great. Thanks!
