1973 Evinrude 115 - what lower/midsections will the powerhead attach to (20 -> 25")

[dcacklam]

So I have a 1973 20" 115 that has been rigged up to fit a 25" transom using a backwards jackplate.

I also have 2 25" 235 V6s (unknown year, but pre-90s - no oil injection) that I got off craigslist in the following condition: one that has some lower unit damage 'fixed' by a monkey with a large tube of jbweld, and one that has a severely scored cylinder.

I know I can put together 1 running 235 from those (JBWeld powerhead on scored-cyl motor's mid/lower)... But the boat is rated for 125hp...

So:
1) Can you put a 73 115hp powerhead on a 235 mid/lower assembly?

2) If the answer to (1) is 'no', what years V4 bottom-end assemblies (eg, everything but the powerhead) will take a 73 115 powerhead?

 

[racerone]

I do not believe a 1973 powerhead is a direct swap onto a 235 HP midsection.====Research to be done on the parts pages by you.

 

[Faztbullet]

Nope ..Nada

 

[jimmbo]

Another Frankenmotor in planning...
V4 Midsections from 1973 thru 77 should fit, with the 140 being an exception.

 

[dcacklam]

Another Frankenmotor in planning...
V4 Midsections from 1973 thru 77 should fit, with the 140 being an exception.

Thanks. As far as I can tell, all 3 of these were already 'frankensteined' before I got them (how many 'stock' 50yo OMC motors are there, anyway?), with the possible exception of the blown-cyl 235.

 

[racerone]

I think there are lots of 50 year old motors that are still the way they left the factory.