Lower unit swap?

Demeott

Recruit
Joined
Jun 17, 2013
Messages
1
I have a 1972 80 hp mercury .
I would like to use the lower unit out of a 67 65hp long shaft.
Will this work ?
 

matt167

Captain
Joined
Sep 27, 2012
Messages
3,630
Re: Lower unit swap?

I do not think so. While they are both 4cyls, the larger engines used the same gear case as the inline 6's but the 650 used the same gearcase as the 500's until they went 3cyl I think..
 
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