G80 / Model 18 • G80 – 18M crankcase swap

Pricey good friends. I’m creating my 1953 18m rigid from scratch.
I have a good G80 engine full and want to swap over the crankcases with some year right AJS 18m cases.
The G80 motor is identical 12 months, 53’, as the 18M cases.
Question : are the internals precisely the same ? Are there bearing differences or everything that can prohibit me?
Many thanks in advance. Newbie AJS operator.

Data: Posted by ajsmike — Sat Apr 06, 2024 9:46 pm

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