This was one of the last Redditch 350 models before the very short lived unit construction engined models replaced them [think longstroked Crusader Sports].
Originally brought in for 'servicing', to address some rattles, it soon became apparent there was play in the big end. Also, the piston rings and oil feed pump were worn out and I also replaced the main bearings. The piston, bore, valves and guides were all very good and all re used, after cleaning up.
B.W.
https://youtu.be/yIwAzUaTKtk