Hi Andy
Thanks very much for the info very much appreciated.
Never thought of measuring the Cylinder heights, must make a note of that in the manual (it’s no good me relying on memory these days I know it’s an age thing) as always concentrated just on the cylinder bore sizes.
Is there any particular reason to fitting the taller barrel to the front?
Apologies for the time it’s taken me to get back to you.
Take care
Phil