Brian,
Thanks, I managed to pick a set of original Honda rings up last night on Ebay so going to re ring it as well.
Thanks for the info did not want to put the thing back together and waste a gasket set.
The engine is turning out to be a bit of a gem did not pay much for it, when I have stripped it down it has been re-bored with new pistons, cam chin tension-er, cam chain guide and cam chain.
Regards,