I say go for it.

It would just be like all those lovely, leaky jaguar engines that used to be
ripped out only to be replace by some GM engine.  Fortunately my dad never did
that on his 1963 Mark II sedan, but then, the inline 6 that was in that car
made 224HP with 225 CI displacement - stock.  But boy, that engine leaked
fluids from almost day one - even had to have mat on the floor all the time.
- Sound familiar?

bem