GE B-23-7 side rails interchangeable ?

[Slomopiot]

All:

Are the side rails that go in front of the cab on a 'regular' Bachmann GE B-23-7 locomotive interchangeable with those on a Bachmann Plus GE B-30-7 locomotive ?  I can't tell just from photos. If they're kinda close, then maybe I could make them work; but otherwise I don't want to order useless parts.