Lower Units ID

[Buccaneer]

I’m going to pick up these two lower units tomorrow that I got cheap
on an online auction, in hopes I can make use of the 1950’s Evinrude
lower unit shown. What would the other lower unit be from? Most
likely from something newer than I have.
Thanks.

Prepare to be boarded!

[fleetwin]

Looks like an early 60s V4 manual shift….

[frankr]

Probably a 75hp V4

[Buccaneer]

Thanks guys. Looks like I’ll have a little trading stock with the V4 LU,
but hopefully I can use the older Evinrude LU.

Prepare to be boarded!

[Buccaneer]

I got the two lower units home today. With these photos can the V4 LU
be ID closer to year and what HP motors it fits?
I did not notice any numbers on it yet.

The 50’s Evinrude LU pictured prior looks like it would bolt up
to one of my 1957 Big Twins. Would there be any “gotch yah’s”
if it’s an earlier model LU, such as drive shaft, gear ratio, etc?

Thanks!

Prepare to be boarded!

[fleetwin]

I’m “guessing” from the color to the shape of the gearcase that you have a 1960 Evinrude 75hp, it appears to be a short shaft (15″). There should be an ID plate on one of the transom brackets that will tell you exactly…

And, I don’t think that other gearcase is for your fastwin…That gearcase appears to be for one of the larger 25-40hp engines… Hopefully some other eyes will confirm or deny this…Post some more pictures of it….

• This reply was modified 3 years, 9 months ago by fleetwin. Reason: addition

[Buccaneer]

Thanks Fleetwin and others. I will look again on the V4 transom clamp, but did
nut see an ID plate when I looked today.

I said “Big Twin”, not Fastwin, regarding the 50’s LU.

Prepare to be boarded!

[frankr]

The style of tilt lock release and transom mounting brackets were used 1960-1968. The motor had a hot-water choke which limits it to 1960-63, but of course could be used on 1964-68 by removing the water fitting.

If you want to narrow it down any more, 1960 had a two-piece drive shaft.

Bottom line is the general design was used 1960-68

[outboardnut]

Somebody please correct me if I am wrong
I’m thinking since the prop shaft is threaded- it a 1956 and under
I’m thinking since it takes a long bolt in the rear-its a 1955 and above
So its a 1955 or 1956
I’m also thinking that inside it has a short pinion gear
I believe 1957 was the first year of the longer pinion gear
Just my opinion

[Buccaneer]

Thanks again for the replies. Going on your tips, I’ll do some more investigating
before I try to sell, swap, or trade it for other outboard parts or groceries!

Prepare to be boarded!

[Author]

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