zundapp 517-06 cylinder

simeon siaterlis /

Hello,i own from my grandfather a zundapp 517-06 50cc propably 1970 model and im going through a full restoration.I want to change its cylinder with its head to 70cc and i found the athena supertherm 70cc cylinder with its head.So here is my question will it connect to my engine block? Thanks in advance.

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