In Reply to: c90 engine in c70 frame posted by dan h on April 13, 2009 at 11:44:23:
: I have a c70 minnus an engine so aquired a c90 engine which I believe to be off a model around same age (round headlamp model with bullet connectors)and engine mounts don't line up.
Hi,
I was here looking for the answer to a similar question, our problems may be the same.
I read somewhere that the 'big engine' with the 'points in the head' had different crankcases, and is not compatible with other years or models of Cub.
Did you work out if this was the issue with your engine?