Need rings for old Wiseco pistons

Top of dome is marked C, 70 mm bore size. Wrist pin boss is marked 4020 and a W in a football shaped logo.
Called APE but they weren't much help because the pistons are an older model.

Anybody re-ring a set of these and can remember where you picked up your rings?

All help would be a appreciated.

If I have the cylinders honed can I just use the old rings, pistons and rings don't look like they have much wear but I don't know the history of the engine.

What are the ring grove widths???

Pistons are at home, I'll check later.

Google Hastings rings and give them a call. they will need the ring thickness and bore diam. good luck.

70 mmXC We should have them. Call again and ask for Pat.

Jay

Great, I'll call in the morning.

It is wonderfull how helpfull a company could be once you say something on the web. I have had the same problems with APE. I call and there is a lot of Ho-Humm around any subject. I just do my research, and find who their suppliers are and go directly to them because they answer all of my questions.

Wow... hope you realize that APE is the ONLY company of its sort to actually take part on this website and provide any meaningful help. Do you have anyone else who sells performance parts for our vintage bikes that is better? Why don't they hang out on vintage bike forums? You know, like APE does... Just curious... Actually, there are quite a few companies that make money from vintage bike performance parts selling and I am surprised that more of them don't seem to be part of the vintage bike forum scene.

well "I" had been helped by Apejay who took time to pm (twice) me and anwer my questions...no sale required...nice guy that Apejay... and they do have access to the rings i needed for that 71mm xc that guys have been walking me thru......they were gonna have to backorder em and i found a contact # for wiseco direct online....they had em to me in three days and the guy on the phone answered some cyl install questiions offered tips and told me to call back if i got stuck...i'm sold...both companies are good and helpful......now i can't wait to get some extra money and build an all fresh motor...works picking up:woohoo:

Just want to make it clear that I was not slamming APE in my first post.

Brian

<edit> Just talked to Pat, Great guy........Jay, thanks for sending me in his direction.

APE has helped me in the past and will help me in the future. I don't mind giving them my money for work done.