[BMWCSRegistry] An ADDITIONAL esoteric question for the Cognisenti

[David Dart]

Forgive this question as it is not specifically Coupe related in the true
sense. 

I know there are some on the register with M5s. I have the chance to buy a
M5 engine which I am thinking of doing for my 635. The question is will the
existing gearbox take the power?
I know the M5 had a larger 5 speed overdrive box than I have at the moment
in 635 but will the existing box take it. I also have a 5 speed close ratio
dog leg gearbox if that would be better - although I have heard they are not
as strong as we would like. 

If it helps digest this question I still have my CS. (phew!)

Any comments welcome.

David.