B head swap, interchangeability
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=188253
Printed Date: 26 Apr 2024 at 12:24am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: B head swap, interchangeability
Posted By: DaveSB
Subject: B head swap, interchangeability
Date Posted: 14 May 2022 at 10:01am
Hey,
I have a 1940 model B that I use to mow my yard with, it has 5’ woods belly mower.
This B burnt #1 exhaust valve.
Will a 1955 CA head swap onto this 40 B?
Just a direct bolt on? Or other modifications needed?
This 55 CA head is a spare I happen to have, well I have the whole engine and tractor, but I need to cut my grass, and the B head has been at a place waiting for a valve job for over a year now, getting tired of waiting, so I’m thinking about putting the CA head on if it is a direct bolt on.
What do you guys think?
Thanks
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1948 C, 1953 CA, 1948 WD, 1961 D-17 Series 2 Diesel, 1939 WC, 1957 D14
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Replies:
Posted By: steve(ill)
Date Posted: 14 May 2022 at 10:10am
I dont know of any modifications to the head that would restrict its use... I think it bolts right on............... number of valve cover studs is all i can think of.
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Like them all, but love the "B"s.
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Posted By: DaveSB
Date Posted: 14 May 2022 at 10:58am
Thanks, glad it will work, yes the valve covers have different numbers of stud holes, but I have a valve cover for each.
Thanks
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1948 C, 1953 CA, 1948 WD, 1961 D-17 Series 2 Diesel, 1939 WC, 1957 D14
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Posted By: SteveM C/IL
Date Posted: 14 May 2022 at 12:36pm
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...or retreive the B head and send it somewhere it'll get worked on...
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Posted By: plummerscarin
Date Posted: 14 May 2022 at 1:46pm
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Tell them what day you're coming to pick it up. Ready or not. BTDT. Was done when I picked it up
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Posted By: DaveSB
Date Posted: 14 May 2022 at 4:23pm
I know what you mean, I’m about out of patience waiting on that B head, it’s really been a year, and I go up there and they tell me they will get to it.
I had to pay $150 up front to leave it there in case it needs new valves, kinda worried about getting that money back, or I would have done went and got it.
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1948 C, 1953 CA, 1948 WD, 1961 D-17 Series 2 Diesel, 1939 WC, 1957 D14
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Posted By: Steve in NJ
Date Posted: 14 May 2022 at 7:39pm
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Not your fault they didn't do anything on it. Pick up your head and your down payment and find another machine shop. Personally, I think you gave them more than enough time to do a valve job on a B head. I mean after all, their not building a blown Hemi.... Sheesh! Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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