Tall cylinder head
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=171586
Printed Date: 24 Aug 2025 at 1:36pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Tall cylinder head
Posted By: Lon(MN)
Subject: Tall cylinder head
Date Posted: 29 May 2020 at 7:33am
| What year or tractor serial number was the tall head used on the WD? Parts book shows an engine serial number but I haven't found a tractor serial number. |
Replies:
Posted By: DrAllis
Date Posted: 29 May 2020 at 7:47am
| That's a tough one, as many have had heads replaced over their years of service life. I know my Dad's 53 WD had battery ignition and the tall cylinder head with the newer thermostat housing. Battery ignition was effective at chassis s/n 136,718 which was a 1953 build. I think the tall cylinder head was probably in use by then at least. Sure wish I knew what Dad's s/n was. |
Posted By: IBWD MIke
Date Posted: 29 May 2020 at 8:13am
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My Grandpa's WD, serial no. 115XXX, which makes it a '52, has the tall head. As far as anyone can remember it was never off. Tractor came with a mag, I converted it to 12 volt and battery ignition. |
Posted By: Dusty MI
Date Posted: 29 May 2020 at 8:58am
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My dad's '53 had the curved shift lever and 6 volt battery ignition, can't say for sure but I think tall head. Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: CTuckerNWIL
Date Posted: 29 May 2020 at 9:25am
What engine number was listed. There is a chart on Bryan Smith's website that lists APPROXIMATE tractor numbers to engine numbers. http://wsmth.people.clemson.edu/SNFind/esn_tsn5.htm" rel="nofollow - http://wsmth.people.clemson.edu/SNFind/esn_tsn5.htm ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Lon(MN) wrote:Posted By: Brian G. NY
Date Posted: 29 May 2020 at 9:27am
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The "tall" head was introduced in 1951 with "engine" number WD289001. Finding the exact "tractor" serial number might be a little difficult. Bryan Smith assembled a correlation of engine/tractor serial numbers which can be found at this site: http://wsmth.people.clemson.edu/SNFind/esn_tsn6.htm" rel="nofollow - http://wsmth.people.clemson.edu/SNFind/esn_tsn6.htm 1951 ENGINE SN Range: 278585-313931 1951 TRACTOR SN Range: 72328-105181 So, I'm guessing the tall head first appeared with tractor numbers in the 80000 range. My WD with tractor number WD100853 and engine number WD309267PA has the tall head.
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Posted By: NE GA Allis
Date Posted: 29 May 2020 at 11:20am
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Yes, pin pointing the exact tractor serial number would almost be impossible. If those engine and tractor serial number ranges are accurate for 1951, there was 2,493 more engines produced in 1951 than tractors. I would assume that the extra 2,493 engines were put in combines or used for power units. Maybe even sent to a dealer if ordered. ------------- Keeping Allis alive with: 2 B’s, 1 C, 6 CA’s, 2 WD’s, 1 WD45, 3 D15D’s, 1 D17 |
Posted By: DrAllis
Date Posted: 29 May 2020 at 12:04pm
| Some may have even powered some merry-go-rounds ??……….. |
Posted By: wjohn
Date Posted: 30 May 2020 at 7:54pm
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My 1951 WD101353 w/ engine WD309752PA has the tall head. As you said it is mentioned in the book at engine SN 289000. The first WD in '51 looks to be 72328. So, my money is on AC changing to the tall head earlier in '51. I don't know that my engine or cylinder head is original, but TomMN mentioned in my thread that it fits nicely in his chart correlating tractor and engine SNs. https://www.allischalmers.com/forum/1951-wd_topic159746_page1.html" rel="nofollow - https://www.allischalmers.com/forum/1951-wd_topic159746_page1.html http://www.allis01.com/fossto/AC-WC-Engine-Data.html" rel="nofollow - http://www.allis01.com/fossto/AC-WC-Engine-Data.html ------------- 1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45 |
Posted By: Calvin Schmidt
Date Posted: 01 Jun 2020 at 5:42am
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From my observations over the years, the tall head started to be used on WD's in 1951 around serial number 83,xxx. ------------- Nothing is impossible if it is properly financed |