Farm Equipment - Engine Upgrades

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Engine Upgrades

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=45751
Printed Date: 09 Sep 2025 at 7:15am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Engine Upgrades

Posted By: AJ
Subject: Engine Upgrades
Date Posted: 17 Feb 2012 at 1:12pm

Anyone know any tricks to get more power out of an Allis C? I know they aren't designed to have a lot of power but I was thinking a little more balls would be nice.

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Can't fix stupid

Replies:

Posted By: CAL(KS)
Date Posted: 17 Feb 2012 at 1:21pm

you need to talk to Dick L and read some of his previous posts. i seem to remember something about putting a D10-12 crank in a C and some other mods

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: Burgie
Date Posted: 17 Feb 2012 at 2:59pm

Stick a D15 series II motor in it.

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"Burgie"

Posted By: allismanamp
Date Posted: 17 Feb 2012 at 3:20pm

i seen a puller from Iowa that put a super charger of a 3.8 gm engine on his pulling tractor made great power to good actually case he broke the rim and tire right of the side of the tractor when he took off down the track had to drag it side ways to clear the track i would have been so embarrassed but that's part of it

Posted By: AJ
Date Posted: 17 Feb 2012 at 9:37pm

If u put a D series engine in it do u have to put special supports on It to hold the engine or does it bolt in the same way?

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Can't fix stupid

Posted By: DrAllis
Date Posted: 17 Feb 2012 at 9:41pm

Easy fix? install a larger carburator from like a D15 or D15 II.

Posted By: BrettPhillips
Date Posted: 18 Feb 2012 at 8:09am

No special engine supports required with the 138, 149, and 160 engines. Having said that, I have seen 170+ cubic inch engines that were based on the 125 block. Probably 55-65 HP.

Posted By: AJ
Date Posted: 18 Feb 2012 at 8:48am

So if a person were to put one of those engines in an Allis C, one could consider that C to be one Mean Orange?

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Can't fix stupid

Posted By: Bolivar Boy
Date Posted: 18 Feb 2012 at 9:19am

aj. you could tell everyone you have a C+ !

Posted By: AJ
Date Posted: 18 Feb 2012 at 9:41am

Ha!

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Can't fix stupid