Bachman GS4 Loco HO scale

[chugger54]

I have a Bachman HO scale GS4 loco (#50201) with the Southern Pacific Daylight paint schemt am wonering if if the
Bachman Norfolk Western loco and tender shells are  interchangeable ; The NW shells has #600 on the loco and #608
on the tender. Will it fit? Thanks

[ACY]

I know the GS-4 uses a different mechanism then the J, and I am pretty sure the shells are not interchangeable for the loco. It might be possible if you made some modifications, but what it entails exactly I am not sure.