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TOPIC: Repowering a 1965 Slickcraft

Repowering a 1965 Slickcraft 1 week 6 days ago #141970

The Grasshopper, our 1965 Slickcraft SS-180, is having itself an existential crisis and needs help!

The motor, a 1965 Johnson Seahorse 90 hp, which became a 100hp after a fire and carburetor replacement, which gained the lower unit of a completely different motor (note it's black in the photo), has finally decided to give up the ghost completely, so we're looking a repowering.

The trouble is, we can't seem to find any information on the maximum transom weight. All the literature says is that the transom can support up to 100hp, but with today's motors being so much heavier I'm not sure what we can put on it. We'd like to keep as close to 100hp as possible. Does anyone here have experience with these repowering these Slickcrafts?
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Repowering a 1965 Slickcraft 1 week 5 days ago #141974

  • 63 Sabre
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Chris. that old motor was a beast. Looking up some info the motor was around 230# dry. I used to have one of those and they are huge compared to todays size/hp ratings. Right now I have an 85hp Johnson 4 banger that weighs in at 275# and a 140hp that weighs 325# Looks like your transom is high enough to handle a heavier motor without any problems if it is solid.
How much newer do you want to go? You could run a 1970's Johnson or Evinrude triple and probably get better performance and gas mileage. Shop craigslist in your area. I see in one of the pics you were in Fox Lake. (WI) ?? If so search the Milwaukee to Green Bay listings or you could follow the Rawhide.org website ebay listings and pick up a good parts boat for less than $500. with a good motor and controls. Here's what's available now until Monday night. cut and paste the link and remove to two spaces I put in.
https: //www.ebay.com/ itm/16-Steury-T316BB-70HP-Evinrude-Outboard-w-Trailer-T1283294/372956867719?hash=item56d5f62c87:g:hoMAAOSwM0hdpiP5
Just a suggestion.

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Repowering a 1965 Slickcraft 1 week 7 hours ago #142004

63 Sabre wrote: I see in one of the pics you were in Fox Lake. (WI) ??


Nice, I thought someone might pick up on that! We're on the Illinois side.

We've had a lot of experience with grabbing parts from older motors and I love the simplicity and authentic look, but my retired parents who use the Grasshopper most of the time are getting tired of reliability issues and want something newer. The concern has been going from a ~230 pound motor to something much heavier (with the same horsepower). The lightest new 100hp outboards we can find are around 325-350, and so we're concerned about the transom weight. Any ideas there? Sound like you think it can take it.

Thanks!

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Repowering a 1965 Slickcraft 4 days 19 hours ago #142016

Hello Chris,

The Slickcraft is a beauty. Dick’s Marine in Fox Lake could make that old Johnson run like new.

We keep our 59 Glasspar on Pistakee Lake near Freddie’s Roadhouse.



Hope to see you out there soon.

Terry
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Repowering a 1965 Slickcraft 4 days 19 hours ago #142017

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Hey Terry, never lose an opportunity to show off the beautiful Mama Mia. Depressing rain the past few days. Just want to get on the water and "social distance" even if I have to wear my long johns.

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Repowering a 1965 Slickcraft 4 days 17 hours ago #142018

Thanks Cal,

Hey smoke em if you got em, Nothing like doing some “ShowBoating”


Mama Mia! at Bar Harbor on Gull Lake MN.


One of Bill's favorites is his 59 Barnes Shark. We have tentative dates of July 18 and 25, 2020 for the Blackhawk Chapter Fox Lake show at Famous Freddie’s.


Haven’t heard from Bill on the Lake Kosh event but looking forward to the Island Bar and Grille too.


My favorite from the Bill’s collection is the 59 Samoan.

Terry
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