I got some big bore sleeved cylinders. I think it was for 10mm stroke 70mm bore with stage4 interchangeable dome head. Ran good but took copper head gaskets, cylinder has stainless steel fire ring installed. took it off running bike and changed to cheetah cub 10mm. If you're still interested hit me up and i'll dig it out and take some pictures. If I remember right it is a polished cylinder.