the motor in the legends were mounted 90degrees different than the motors in 5th and 6th gen accords.
like he said, with money, anything is possible... but its gonna be too expensive to think about... the nose of the car would probably have to be lengthened.
In a 5th gen accord, a j30a engine would be more practical... its a GREAT engine, just the tranny's suck... but they can be built up to handle more power. And the 6th gens already have the j30a engine in it...