critical ebay score

so ray called me the other day and said the jug i sent him is already on its largest available piston size and that he is hesitant to port out a motor that is on its last legs. fair enough and i couldn't agree more. fortunately i was able to bag this delightful item at the price i deemed reasonable ($50 shipped). stock bore is 85mm and this puppy is out to 85.15mm; F'n A.  

 i think this is why it was affordable but with a new piston already worked into the budget its no big deal.

 and this is why it was valuable in addition to the smaller bore; un-messed-with ports. not easy to find 30 years later.