125 block id question
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=39468
Printed Date: 08 Sep 2025 at 5:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 125 block id question
Posted By: alan-nj
Subject: 125 block id question
Date Posted: 24 Oct 2011 at 6:38pm
this block came from a pile of parts from a 39 b. notice some things are a bit different from most other old b blocks. notice that there is no flat area at the middle of the back where some engine serial numbers were located. there is also no serial number in the other side location. also, the casting numbers on the side of the block begin with a 40, not the usual 29. there is also a 2nd set of numbers/letters embossed on the side; they read G 15 H. Could this be a power unit block? or possibly a replacement block sold by the dealer??
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Replies:
Posted By: orangeman
Date Posted: 24 Oct 2011 at 8:01pm
| Looks to be a CA engine block. |
Posted By: morton(pa)
Date Posted: 24 Oct 2011 at 8:07pm
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I'd have to agree, that's a CE Engine block. On the flange that mounts to the torque tube, look for a serial number that starts with CE. The area is shown in the first picture but is too bright and shiney to read. Cant say I've seen that casting that sits behind where the magneto goes though...
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Posted By: alan-nj
Date Posted: 24 Oct 2011 at 8:53pm
| my ca block casting begins with 29, not 40. morton, re-read my post. there is no serial number to be read. |
Posted By: TomMN
Date Posted: 24 Oct 2011 at 9:18pm
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That has the same casting numbers as my 1958 IB, even the big 2. Since there is no serial number maybe it is a replacement. Mine has serial number CE 203474 PA putting it well into 1958. |