2 questions about 2 stroke Yamaha

[BBayGuy]

I have a 1988 Yamaha 40 HP 2 stroke. Would a 2002 40hp 2 stoke lower unit fit?

Has anyone heard of attaching a 70 HP 2 stroke lower unit to a 40 horse? Is it possible?

 

[deejaycee_2000]

Nope to both questions ....

The only ever 70hp and 40hp that was similar was the 70CES yamaha that is basically a 40/50hp yamaha with a 70HP factory formula 4 racing powerhead. All shortshaft of coarse (15" shaft)