Quote Originally Posted by Bernie View Post
It is a Berkley, used Enfield 350 cc twin motorbike engine.
Yes it is a Berkely but I'm sure they were powered by an Excelsior 350cc two stoke engine.Or maybe even a 325cc Excelsior.

A mate of mine shoehorned a 500ccBSA A7SS engine into one of them in the early 60s.
It almost ripped the tarmac off the road with the accelleration.



Pud