Cub engine swap

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Chevysnfarmalls
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Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 8:18 pm

I'm fairly new to the cub world. I have a 1950 cub with a 5 foot belly mower. It it low on power. I want something a bit bigger. How much work would it be to put a c123 engine into a cub?

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Steve Butram
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Re: Cub engine swap

Postby Steve Butram » Tue Aug 21, 2018 8:35 pm

With some modifications. I haven’t seen one with one
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Chevysnfarmalls
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Re: Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 8:36 pm

I need to research the 123 more I think.

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Re: Cub engine swap

Postby Eugene » Tue Aug 21, 2018 8:43 pm

Not a direct bolt in. Best bet for more "power" is to purchase a larger tractor.

Edit. The other option is to overhaul the C60 engine. But then, you can sometimes purchase a larger tractor for less money than an extensive engine work on a C60.
Last edited by Eugene on Tue Aug 21, 2018 8:45 pm, edited 1 time in total.
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Re: Cub engine swap

Postby Jim Becker » Tue Aug 21, 2018 8:44 pm

People have done swaps of bigger engines into Cubs. However as a practical way to get more power, I'd say it is totally out of the question. If you start trying to put much more power through the Cub transmission and PTO, it won't hold up. If a Cub engine in good mechanical condition and well tuned isn't adequate, get an A or Super A. Then you have a drive train sized for a bigger engine.

Chevysnfarmalls
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Re: Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 8:46 pm

I dont want a bigger tractor. I only use it to mow 2 acres. I thought the c123 would be a decent swap due to only having 7 more horses than the c60 that is in the cub now.

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Re: Cub engine swap

Postby SONNY » Tue Aug 21, 2018 9:02 pm

SA or A would still be right for 2 acres.--Not that much bigger than cub.----IF you have the time and resources to do the swap, then by all means go for it!---Prepare yourself for a long frustrated project that may lead into a dead end!
I even saw a 302 Ford v-8 engine stuffed into a cub lo-boy 154!!! ---You can re-power anything WITH anything if you can figure out all the adapters and connections! Good luck on your venture and let us know how you progress on it! thanks; sonny

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Re: Cub engine swap

Postby Barnyard » Tue Aug 21, 2018 9:06 pm

Maybe yo need a V6.
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staninlowerAL
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Re: Cub engine swap

Postby staninlowerAL » Tue Aug 21, 2018 9:16 pm

Barnyard wrote:Maybe yo need a V6.
Like this: https://www.youtube.com/watch?v=2WD5hi_Vs2U

Chevysnfarmalls
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Re: Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 9:19 pm

I dont want to over power it. Just a few more ponies for when the grass is tall.

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Re: Cub engine swap

Postby inairam » Tue Aug 21, 2018 9:31 pm

Instead of swapping the engine I would swap the mower

Using a finish cut mower with 3 blades means you have to stay on top of the grass. If you get behind you are lost

You get a very nice cut with a woods 42 or a C2 mower that are not finishe cut mowers but put less load on the Cub. The C2 cut is about 60" so you would not add time to the cut.

A flail mower is also a very nice low load on the cub but some people do not like the cut as it does not "mulch" and leaves long clippings. If you stay on top of the cutting I think it leaves a nice cut. If it gets high you have raise the deck and it will cut.

I maintain about 10 acres with a couple of cubs but I am cutting most of it to a pasture height of 6-8 inches. The wood 42, C2 and flail all cut nice around the house at 3-4 inches and if it get high on me I raise the deck and cut


Another option is to get another Cub and a friend to help cut!
When you only have 9 horsepower you need to know the names of all of the ponies!

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Re: Cub engine swap

Postby xraycajun » Tue Aug 21, 2018 10:01 pm

I grew up cutting 5 acres every week for nearly 20 years on my cub. I learned that it really liked to be kept in tune and needed sharp blades. I just completed a comprehensive month-long rebuild a few days ago. Its not terribly expensive if you do the work yourself.. there are so many wonderful resources on this site! Only, I do have another suggestion concerning the mower. When I put this tractor back into grass service, it will not be with a PTO driven mower. I will simply pull a 3-reel gang-reel mower behind the cub. It should be a lot less strain on the engine.

Chevysnfarmalls
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Re: Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 10:06 pm

xraycajun wrote:I grew up cutting 5 acres every week for nearly 20 years on my cub. I learned that it really liked to be kept in tune and needed sharp blades. I just completed a comprehensive month-long rebuild a few days ago. Its not terribly expensive if you do the work yourself.. there are so many wonderful resources on this site! Only, I do have another suggestion concerning the mower. When I put this tractor back into grass service, it will not be with a PTO driven mower. I will simply pull a 3-reel gang-reel mower behind the cub. It should be a lot less strain on the engine.



Doesnt the reel mower only do well in short grass?

xraycajun
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Re: Cub engine swap

Postby xraycajun » Tue Aug 21, 2018 10:13 pm

I have heard that reel mowers work better with short grass.... the grass I will be cutting will be a large manicured lawn. I don't let it get out of control.

Chevysnfarmalls
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Re: Cub engine swap

Postby Chevysnfarmalls » Tue Aug 21, 2018 10:43 pm

I don't always have time to mow as often as I'd like


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