I cannot find a single set of std rings for CB 450. Anyone got any ideas? Or how big of a bore can I go with a stock head gasket? I see some 3.0mm overbore sets around. I really don't care about bore size so much as keeping cost down. This project has a tight budget. I got the motor in a box, all there except rings. It was taken apart to polish the cases, PO lost interest.
