Eugene wrote:I know of no one who currently supplies a sleeve for the C-60 engine. Perhaps your machinist has access to a supplier.
Another thought and this is going to take a whole bunch of research and comparison. Look for a piston from another industrial engine that is slightly larger in diameter. Perhaps one for a 70 mm bore.
Consider purchasing a complete running engine from one of the advertisers on this board. Or a rebuildable block. Of the two choices I listed. I would go with a running engine. Upon receipt dismantle the engine then rebuild or renew as needed.
Thanks for the ideas. Sleeves are available just have to find them.