Are 92 chevy lumina alternators and starters interchangeable with 96 oldsmobile cieras?

I just bought a alternator for my 1992 chevy lumina 3.1L and the engine went to crap.. bought a 1996 oldsmobile cierra 3100 and need to know if the alternator and starter would interchange so i don't have to scrap a brand new alternator.|||After checking the part numbers of these parts they will not interchange.Best of luck.