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Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Engines > Kohler Engines

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  #1  
Old 03-27-2020, 12:00 AM
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Default 10 hp to 16 hp

Can a 10 hp Kohler be bored out to a 16 hp?
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Old 03-27-2020, 12:36 AM
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It depends,,,
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Old 03-27-2020, 12:52 AM
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CAD plans, ssshhh.
.......work with me on this, lol
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Old 03-27-2020, 01:21 AM
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I suspect not, a 10hp has a bore of 3.251" and the 16hp has a bore of 3.750", that's roughly 1/4" of material from the side wall. I'm not sure on the side wall thickness, but I don't think it will leave you with enough.
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Old 03-27-2020, 01:47 AM
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Kohler's are tough motors, they can take it.
But I already know that I need to change the stroke to 3.25.
It can be easily bored to that.
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Old 03-27-2020, 02:09 AM
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I'm not debating that they're tough little engine, I love working them good and hard.
The stroke is easily changed with a K301 crankshaft.
You might be able to bore it out to 3.375", making it into K301, but going to 3.750" I don't think will leave you with enough cylinder wall thickness. You'll start the thing and blow the jug right off it.
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Old 03-27-2020, 03:28 AM
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Green407, bear with me on this. Cadplans is too. Lol, you'll see.
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Old 03-27-2020, 10:26 AM
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You got mail

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Old 03-27-2020, 10:30 AM
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There are other ways to make extra HP.. Not that I would do it... But there are ways
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Old 03-27-2020, 01:20 PM
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Quote:
Originally Posted by CADplans View Post
It depends,,,
The reason I said,,, depends,,, is that different castings were used to build different vintage engines,,

The 10HP engines were not all cast the same way, some were cast to allow a larger bore.

SO,, your 10HP block may be able to be bored out to a different size than another 10HP,,

or,, not, as we do not know what 10HP engine you are starting with,,

SO,, my answer is still,,,,

DEPENDS,,,

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