Pulling Forum - Allis C puller

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Allis C puller

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=142129
Printed Date: 03 Nov 2025 at 10:27pm
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Topic: Allis C puller

Posted By: jfrdiesel
Subject: Allis C puller
Date Posted: 04 Sep 2017 at 9:47am

Will a D15 manifold and carburetor on the allis c engine make more power? If jot what is the best choice of manifold and carburetor for a division 1 allis c? Thanks

Replies:

Posted By: PaulB
Date Posted: 04 Sep 2017 at 1:28pm

It will not be a direct bolt up fit, although a good machinist can get the job done. None of the bolt holes match but the ports match up.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: jfrdiesel
Date Posted: 04 Sep 2017 at 1:36pm

Are the ports larger? Would it be worth porting the c manifold rather than making a d15 manifold fit?

Posted By: PaulB
Date Posted: 05 Sep 2017 at 4:13pm

The ports match as I said above. You can lay one gasket on top of the other a see this. However if your only running in division 1 I hardly see the end result worth the effort. Now If you had bored stroked and increased the RPM, the benefit would be well worth doing the work. There are a lot of little tweaks you can do to a "stock" engine to get the most out of what you have. Just swapping to a larger venturi in the carburetor you have is most likely all you need.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: Ken in Texas
Date Posted: 07 Sep 2017 at 5:50am

Tire slip is what stops me. Solve that problem and you may have a winner unless you just plain power out with traction.

Posted By: jfrdiesel
Date Posted: 10 Sep 2017 at 3:42pm

Thanks for the reply, I have herd the WD carburetor would be a good up grade. Is this true? Thanks again