A guy added me on FB from the gsxr 400 page, he has been un-able to register on forum because of his lack of english and is getting confused (he is from egypt.

he is struggling to find a local engine for his bike and has come across the GK78a engine and wondering if that would fit?

Not sure it will fit.
Deffo one of the gsxr4 or bandit4 engines.
Just depends if its b4 or gsxr76a based.

The link is to a 78a motor so he can compare front mounts.
I think being a twin spar frame may make it a no no.

http://www.google.co.uk/imgres?imgurl=h ... m=1&itbs=1