Prop 307431

[RICHARD A. WHITE]

I have an OMC prop 307431, I am confused as always as to what it fits….It is 3 blade aluminum, pin drive, no splines, and 2 shallow keys opposite each other, bore of about .780

Thanks

Richard

http://www.richardsoutboardtools.com
classicomctools@gmail.com

[garry-in-michigan]

Here is what I have, 307431 is not listed in my 1963 price list . . . 😀

[david-bartlett]

Richard,

Check this listing. It looks like a number change. I found two different boxes with number 378039 on the box and 307431 on the prop.

https://www.ebay.com/itm/OMC-Johnson-Ev … cD&vxp=mtr

Hope this helps.

[RICHARD A. WHITE]

David,

I found that as well, just have not found an actual motor to connect it to definitively. Propco shows that info of 378039 being a 10X12 prop which is what this is.

http://www.richardsoutboardtools.com
classicomctools@gmail.com

[retiredoz]

For E/Js V4s from the ’60s.

[RICHARD A. WHITE]

Thanks 🙂

http://www.richardsoutboardtools.com
classicomctools@gmail.com

[outbdnut2]

In the ’60s, with your choice of props when you bought a V4, the 12 inch was the highest pitch offered. You needed a super light boat, or a twin motor setup for the 12 inch. I tried one back in the 1960s on a light Crestliner 14′ Aluminum Voyager14 with a V4 60 HP. I could get 42 MPH with it trimmed up, but It was worthless for pulling up a skier.
Dave

[Author]

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