!972 65hp Hydroelectric Compatibility

[Paulnixon123]

Hi guy's i'm back. I still have had no luck with my 1972 65hp hydroelectric and getting it to move in the lake.

I have found a guy who has a 55hp hydroelectric long shaft lower leg. Will this lower unit be compatible with my 65hp?

Any help will be greatly appreciated.

[boats.net]

It looks like it may work but there is not enough information on two of them to say for sure if will work.