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View Full Version : 1988 Seadrive 1986 Evinrude parts interchange


deshet
10-17-2006, 09:05 PM
As everyone knows I have a 1986 V6 150hp for sale.

I have a 1988 Seadrive V6 225hp on my 23' and am wondering if the lower unit is the same between these engines.

I am think it might be worth keeping the lower unit and just sell the powehead.

What do you guys think?

brianct12
10-17-2006, 10:06 PM
My guess is no - not the same lower unit. But its just a guess. Seems to me I remember reading somewhere - that OMC lower units were different from the 150/175 to the 225. Ya gotta figure the 225 lower unit to be much beefier to handle the extra power.

Airslot
10-17-2006, 10:42 PM
It should bolt up, but it won't really work as the gear ratio's are different. Skools....where you at on this one...

Airslot

Skools Out
10-17-2006, 11:27 PM
yes same lower unit. will fit perrrrrrrrrfectly. Worth keeping yes for sure. Ratio is same and all.

Skools Out
10-17-2006, 11:29 PM
oh and on ratio that is same on those but wouldn't matter you could just prop the motor to work with the ratio you have in the lower unit. i have seen twin V6's with twin V4 lower units using just a higher pitch to fix the ratio.

deshet
10-18-2006, 02:32 AM
Thanks all for the response


One more question, I believe the 225 is a 25" motor and the 150 is a 20". Is this a show stopper?

thanks

Skools Out
10-18-2006, 02:37 AM
won't fit unless you find an old drive ext for that unit or have a shop swap shafts in the 2 units