Pulling Forum - engine Modifications

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engine Modifications

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=141639
Printed Date: 04 Nov 2025 at 3:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: engine Modifications

Posted By: dgerth
Subject: engine Modifications
Date Posted: 19 Aug 2017 at 6:01pm

Gentlemen,

I have plans to modify an Allis engine for pulling, but I have several ?'s on this endeavor.

It will be a CA class tractor, 25k to 35k @ 4,6,8 mph.

I have access to a 138, 125 and 160cid motors. I want to stroke and bore this motor to be in the 200cid size. Are there any restrictions to using one of these motors for the build such as crankshaft restrictions, block restrictions etc. Should I stay with the 138 149,160 blocks and remove the 125 from consideration. What are ya'lls ideas on this project?

Thank you.

Replies:

Posted By: tbran
Date Posted: 19 Aug 2017 at 8:58pm

save some time and $ - there are a couple for sale on prior posts

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: DiyDave
Date Posted: 20 Aug 2017 at 6:28pm

Buy Paul B's turbo CA, all the bugs have been worked out already...

[TUBE]GXU6b43E6ro[/TUBE]

Posted By: HudCo
Date Posted: 20 Aug 2017 at 10:33pm

to bad all you could hear is that clanging banging john deere

Posted By: Gary
Date Posted: 27 Aug 2017 at 7:52am

watch the 10/18/2015 that follows. Just Paul pulling,