Should fit straight in. Only difference there will be with the mod is exhaust is on the opposite side from memory and your rad. Other then that should go straight in with same mounts. Also i think sump is different is it. Might wanna check that?????
Gus,
Silly question time, does the crossmember curve to the rear in a RA65 while the RA40 one curves to the front ? I think this might have a bearing on what mounts you can use.
Cheers,
Mitch.