What was a "Power Pack"?
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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=136958
Printed Date: 07 Sep 2025 at 1:16am
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Topic: What was a "Power Pack"?
Posted By: BenGiBoy
Subject: What was a "Power Pack"?
Date Posted: 03 Apr 2017 at 1:52pm
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I was talking to a friend at church the other day, and he said that on the farm when he was growing up they had a WD that they sent in to get a "Power Pack", to up the horsepower to a WD-45. Does anyone know what all this contained/ what they did to the tractor? ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Replies:
Posted By: DrAllis
Date Posted: 03 Apr 2017 at 4:18pm
| M & W piston and sleeve kit # SP-46 raised the HP to 40 at the PTO, not 43 like a WD-45. We had one and it never would match the WD-45, altho better than a standard WD at 33 HP. |
Posted By: LeonR2013
Date Posted: 03 Apr 2017 at 5:03pm
| Thar's right doc, but if you were driving a 55-56 Chevy or Ford, you had a 4 barrel engine with dual exhaust from the factory.. |
Posted By: jiminnd
Date Posted: 03 Apr 2017 at 9:17pm
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I think Dr is right, I remember people who put Power Paks in M IH to make them like a Super M. I think M and W made them for alot of different tractors. ------------- 1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner) |
Posted By: shameless (ne)
Date Posted: 03 Apr 2017 at 10:48pm
| dad had M&W kit put in his M Farmall...really made a difference |
Posted By: TedBuiskerN.IL.
Date Posted: 04 Apr 2017 at 10:17am
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The Chevy reference had a "Power Pack" head on the early 265 and 283 engines. They were identified by a small "Peak" on the end of the head. ------------- Most problems can be solved with the proper application of high explosives. |
Posted By: BenGiBoy
Date Posted: 04 Apr 2017 at 12:56pm
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Interesting! Thanks! ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Posted By: BenGiBoy
Date Posted: 04 Apr 2017 at 12:56pm
jiminnd.... I would have rather got a real Super M, then I would have had the hydraulics.  ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Posted By: DrAllis
Date Posted: 04 Apr 2017 at 1:03pm
| M&W made a kit for that too. |
Posted By: BenGiBoy
Date Posted: 04 Apr 2017 at 1:12pm
Oh, I see. Thanks! (Learn something new every day!!!!  )------------- '39 Model B Tractors are cheaper than girls, remember that! |
DrAllis wrote:Posted By: tadams(OH)
Date Posted: 04 Apr 2017 at 1:32pm
| M&W made a hand clutch for the M and Super M also |
Posted By: BenGiBoy
Date Posted: 04 Apr 2017 at 1:36pm
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Learned something else new!! I thought that M&W was just a internal-engine parts manufacturer.... wrong again... LOL. ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Posted By: old farmer
Date Posted: 04 Apr 2017 at 1:53pm
| Also they made grain dryers and hay balers. 9 speed transmission kit IH m's. |
Posted By: Lester
Date Posted: 04 Apr 2017 at 3:20pm
| The kit also included a carb kit . We made the M&W kits at Seal Power were i used to work. |
Posted By: DennisA (IL)
Date Posted: 04 Apr 2017 at 4:11pm
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Did the WD crank need to be replaced with a WD-45 crank as well?
I've been told that many farmers replaced the cranks instead of buying a new 45.
------------- Thanks & God Bless Dennis |
Posted By: Walker
Date Posted: 04 Apr 2017 at 4:39pm
| What did the M&W stand for? I've heard of m&w since I was a kid but never who m&w is or was. |
Posted By: Allis dave
Date Posted: 05 Apr 2017 at 7:49am
| My Grandpa worked with Lester at Sealed Power. For his retirement the plant manager called my Grandpa into his office and lead out a new sleeve and piston set for his WC. They said that WC really ran after that! Grandpa broke his arm, hand starting it once a wile after that and never really used it much again. |
Posted By: BenGiBoy
Date Posted: 05 Apr 2017 at 1:20pm
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Interesting, I just learned a lot! Thanks all. ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Posted By: WF owner
Date Posted: 13 Apr 2017 at 4:28pm
| I remember M&W turbocharger kits back in the early days of tractor pulling in our area (early 70's). |
Posted By: HD6GTOM
Date Posted: 13 Apr 2017 at 8:48pm
| A lotta guys put d17 sleeves and pistons in. Don't know if they would work in a straight WD though, know they worked in the WD45. M and w made governors for McCormick Deering 1020's, my 1020 had 1, dual wheel hubs, etc |
Posted By: DanD
Date Posted: 13 Apr 2017 at 10:08pm
D17 pistons on a straight WD 4" stroke tractor don't work well. Compression ratio is really low. However I've heard that WD pistons in a 45 or D17 with 4.5" pistons makes the compression so high you almost need racing gas. I have no first hand knowledge of either of these events, but have seen them discussed on here. |
Posted By: Wayne180d
Date Posted: 13 Apr 2017 at 10:45pm
| I have am M Farmall and it has the M&W pistons, nine speed, governor and the hydraulic upgrade. My brother has a straight m and there is no comparison in the two |