ADP91Not sure if this is what you're looking for:Surplus to my needs I have a small fin, thin flange A10 cylinder.Bored to + 40 and powder coated1 broken fin tip at the bottom that was re attached with JB weldWhere are you in Cana-duh?Sorry for the late reply. Been busy trying to finish another project.At the moment I have the crankcase from a '59 and a cast iron head. Would a small fin, thin flange cylinder work with that setup? I'm in Vancouver.Cheers, A S