Swap 1993 Yamaha 60 HP Lower Unit with 1997 60 HP

[cherisse]

Can I swap a:
1993 Yamaha Pro 60 model P60TLHR w/ lower unit PN 6H3-45300-13-EK w/a
1997 Yamaha --- 60 model C60TLRV w/ lower unit PN 6H3-45300-E4-4D ?

Any things I need to be aware of or change? Both have 20" shaft.