WD engine
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=24417
Printed Date: 18 Jul 2025 at 11:50am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD engine
Posted By: Craig (KY)
Subject: WD engine
Date Posted: 20 Jan 2011 at 6:02pm
| I thought I read on here that one could put a WD-45 crank and sleeve/piston set into a WD engine. If this is possible, is there anything else required. Thanks! |
Replies:
Posted By: AaronSEIA
Date Posted: 20 Jan 2011 at 6:54pm
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Not really. It would be benificial to use the WD45 head, carb, and air cleaner. Head is probably a wash, but the carb/air cleaner were bigger on the WD45.Thats what I've done to my WD. 45 crank, head, carb, air cleaner on a 4" AGCO overhaul kit. Someone else will have to chime in about the manifold. I know the aftermarket ones are for a WD-D17, but I'm not sure how one would compaire to an original WD for carb flow.
AaronSEIA
|
Posted By: daveingreenbay
Date Posted: 20 Jan 2011 at 9:27pm
| Put a `45 crank, 4 1/8 sleeves and pistons in a `48 WD block. Used the original head, air cleaner and carb. Had all the rotating assemblies balanced. It dyno`s at 45 HP. You can`t tell externally that anything is different until you plow with it at half throttle. |
Posted By: Steve M C/IL
Date Posted: 20 Jan 2011 at 10:35pm
| Better put a 45/D17 carb and manifold on if you want best results.Dad put M&W's (for a WD)in the WD in 62 and was sadly dissapointed with the upgrade untill he installed a 45 manifold and carb.It would work right with any stock 45 after that and is still running today. |
Posted By: Matt MN
Date Posted: 21 Jan 2011 at 8:27am
|
Is there enough "rotating" clearance on a WD-WC block for the 4.5" crank? I thought that is why the Dash 40 block was so sought after is because it was wider to accept the larger crankshaft from the WD45? ------------- Unless your are the lead horse the scenery never changes!! |
Posted By: Lonn
Date Posted: 21 Jan 2011 at 10:14am
It will fit but what is a Dash 40 block. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Matt MN wrote:Posted By: Matt MN
Date Posted: 21 Jan 2011 at 10:34am
|
the dash 40 block was the last version of the Wd motors with the side plate. if you read the AM number on the right side it will end with a
-40. From what I have learned they are sought after by the pullers because they have a larger bottom end for the larger rotating assembly that the wd45 crank requires? I know they physically look larger (wider)where they meet the bellhousing. ------------- Unless your are the lead horse the scenery never changes!! |
Posted By: Lonn
Date Posted: 21 Jan 2011 at 11:37am
Learned something new again. The crank will still fit in any 201 block as far as I know. They might be after that particular block because a stroked crank will fit without as much grinding. That's my thoughts. I have put in and taken out 45 cranks in WD and WC blocks before and never paid any attention to the block casting number. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: DrAllis
Date Posted: 21 Jan 2011 at 12:24pm
| There is a little more room for a bigger than 4 1/2" crank, but the main reason is the -40 block is stronger above the center main saddle. All older blocks are open in that area and the -40 is all cast iron. In short, a stock stroke WD45 crank will fit with no issues in all WC-WD blocks. |