Graham, looks like there were no cracks in the block either.
Just heard from the machine shop, he had to bore the cylinders .060 over to get them round and true again.
There wasn't much of a ridge when I tore it down and he said the top 2 inches were really worn. Said when he set the cutting bit at .030 then at .040 it didn't even start cutting until it got down in the bore a couple inches.
Some one must have cut the ridge off at some point and time.
I'm going to measure those pistons out, if they're not oversize I'll be surprised.....
Looks like it'll be alittle over 235 ci now
Dave