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Craig (KY) 
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Joined: 18 Jan 2011
Location: Kentucky
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 Topic: WD engine
Posted: 20 Jan 2011 at 6:02pm |
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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!
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AaronSEIA
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Joined: 11 Sep 2009
Location: Mt Pleasant, IA
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Posted: 20 Jan 2011 at 6:54pm |
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
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daveingreenbay
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Joined: 09 Oct 2009
Location: Green Bay
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Posted: 20 Jan 2011 at 9:27pm |
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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.
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Steve M C/IL
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Joined: 01 Jul 2010
Location: shelbyville IL
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Posted: 20 Jan 2011 at 10:35pm |
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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.
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Matt MN
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Joined: 14 Sep 2009
Location: Silver lake MN
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Posted: 21 Jan 2011 at 8:27am |
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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?
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Unless your are the lead horse the scenery never changes!!
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Lonn
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Joined: 16 Sep 2009
Location: Назарово,Russia
Points: 29792
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Posted: 21 Jan 2011 at 10:14am |
 Matt MN wrote:
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? |
It will fit but what is a Dash 40 block.
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Matt MN
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Joined: 14 Sep 2009
Location: Silver lake MN
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Posted: 21 Jan 2011 at 10:34am |
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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.
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Unless your are the lead horse the scenery never changes!!
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Lonn
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Joined: 16 Sep 2009
Location: Назарово,Russia
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Posted: 21 Jan 2011 at 11:37am |
Matt MN wrote:
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. |
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.
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DrAllis
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Joined: 12 Sep 2009
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Posted: 21 Jan 2011 at 12:24pm |
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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.
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