WD & 45 Head swap?
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=172028
Printed Date: 01 Apr 2026 at 1:20pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD & 45 Head swap?
Posted By: Larry Miller
Subject: WD & 45 Head swap?
Date Posted: 14 Jun 2020 at 4:11pm
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I have a WD and a 45 that could use the WD parts. Just put lots of bucks in the WD head and now have a 45 that needs engine work. Can I move the WD head to the 45? Thanks, Larry Miller ------------- I used to be young and stupid, now I am not young anymore. |
Replies:
Posted By: MACK
Date Posted: 14 Jun 2020 at 9:43pm
| Yes, as long as you use rocker arms and ect. with head. MACK |
Posted By: Larry Miller
Date Posted: 14 Jun 2020 at 10:03pm
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Thanks, that is good news for me. ------------- I used to be young and stupid, now I am not young anymore. |
Posted By: Brian G. NY
Date Posted: 15 Jun 2020 at 7:55pm
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The heads on the later WDs were the same as the WD-45; 4" tall. Only the early WDs (prior to "engine" serial #289001) had the "short (3") heads. If the WD head you intend to use is the "short" one, only then will you have to change the rocker arm stands and pushrods as well.
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Posted By: AaronSEIA
Date Posted: 16 Jun 2020 at 5:28am
Pushrods remain the same. Rocker stands, valve cover, and head studs are all you need to change. AaronSEIA
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Brian G. NY wrote:Posted By: Brian G. NY
Date Posted: 16 Jun 2020 at 6:44am
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Thanks Aaron for correcting that, I knew that.....just forgot. Short head, tall rocker arm stands......Tall head, short rocker arm stands. Oh, and the valve covers are also different too, tall for short and short for tall.
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