I don't know if you have heard of these guys? http://cameronracingengines.com/esite/home http://www.mfcpatterns-castings.co.uk/page3.htmHere are a couple of my little engines. They were both built in 1935, the one on the left is a 350cc and the right one is a 250cc.
The rest of the bike will mostly be 250cc BSA. I have all that stuff including the girder forks; but I'm still struggling with bits like crank shaft components, which are not so straightforward to re manufacture.
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