Props interchangeable?

[stephen25]

I have a 1987 60 hp merc. OB and a 1987 115 hp OB can I use one prop or the lower unit from the 115 on the 60 hp?

 

[kmarine]

Re: Props interchangeable?

I dont believe they are the same diameter or pitch. Are they used on the same size boat?

 

[jestor68]

Re: Props interchangeable?

The 1987 60 and 115 use different size lower units(115 is larger diameter).

Later model 60 "Big foot" models used the same lower unit as the "intermediate" models(90,115,125).

The intermediate gear case is 4-1/4" diameter, whereas the small 60 gear case is something like 3-1/2" diameter.