94 Force 90hp Crank

[steveofire]

Hey there: I have a 94 Force 90hp that the rod bearing went bad and got into the crank, I am wondering if and what years crank and rods would work on this motor. I have a guy that is parting out a 90 force 90hp powerhead but from what all I can tell it's only from 91 to 94 that will work, if a 90 crank wont work does anyone know what the difference between a 90 and 94 force 90hp crank and rods are? Thanks

 

[Frank Acampora]

Re: 94 Force 90hp Crank

90 is before Mercury got their hands on Force engines. ANY 85 or 90 with a Mercury lower unit will work.

The only difference in the cranks is the splines for the drive shaft. earlier ones had more splines while the Mercury ones had fewer and larger splines. The lower units are different and will not swap.