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Allis Chalmers Discussion Forum
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WD-45 crank in a WC?

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Farmall Daddy

03-26-2005 08:44:46




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I know that you are able to put a WD-45 or D-17 crankshaft into an allis wc engine, but can you do it with the factory wc head? I have the 4 1/8 overbore pistons in my wc, and was wondering what kind of power would I get if I were to change the crank and/or the head to a D-17 or WD-45? Thanks!!




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chuckster

03-28-2005 17:02:58




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 Re: WD-45 crank in a WC? in reply to Farmall Daddy, 03-26-2005 08:44:46  
Well I think that you should get some where around 50-60 hp.The D17 crank wont work in the small block motors because of the main bearing diameters. good luck its a fun motor to play with.



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Farmall Daddy

03-29-2005 17:53:04




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 Re: WD-45 crank in a WC? in reply to chuckster, 03-28-2005 17:02:58  
Right now the engine is totally factory, other than the 4 1/8 oversize pistons. Far as I know, they are flat head pistons in it right now, and I can still put the 45 crank in it without having to put crater pistons in it or change the head? I figured that the valves would be awfully close to hitting the top of the piston. Thanks for any info guys/gals!!



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h.b. hUTCHENS

03-27-2005 18:24:45




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 Re: WD-45 crank in a WC? in reply to Farmall Daddy, 03-26-2005 08:44:46  
Don't know the hp, but if I figured correctly your 201 will have 246 ci's. H.B.



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H.B.Hutchens

03-27-2005 18:02:50




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 Re: WD-45 crank in a WC? in reply to Farmall Daddy, 03-26-2005 08:44:46  
45 crank will bolt in with no mods to block. use pistons fromany 201 0r 226 engine. I run 4 1/8 m & w with no compresion or starting problems. Also have ground cam. Makes a stong tractor out a WC. Hope this helps. H.B.



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Jerry Coulter

03-26-2005 09:13:56




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 Re: WD-45 crank in a WC? in reply to Farmall Daddy, 03-26-2005 08:44:46  
If you put the WD-45 crank in a WC block, you also have to replace with Power Crater style pistons or else you would end up with excessively high compression ratio. You might also have to take a grinder and shave a little off the block to allow the crank to spin. The old head would work alright, the newer style only moves the spark plug fire toward the center of the piston.



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steve(ill)

03-26-2005 14:35:37




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 Re: WD-45 crank in a WC? in reply to Jerry Coulter, 03-26-2005 09:13:56  
i think the WC was 201 cubin inch and the WD45 and D17 were 226 due to longer stroke. the 17 also has bigger main bearings so it will not fit in the WC. the 45 crank is a good upgrade, but need its pistons to go with it as mentioned.



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