We have not done any work on the firewall yet. Is a Kitfox model 1 firewall strong enough to hold a Rotax 912? I see 5 AN-4 bolts hold the Rotax 532 engine mount to the airframe. Is this the same with the Kitfox 4?

John McBean has been reluctant to give me any advice on engine replacements. I imagine he does not want the liability.