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Discussion Forum
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Re: WD Engine Upgrade

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Tom

10-26-2002 19:00:54




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45s are strong and useable, crank and pistons from a 45 and maybe the tall head should make you a 45.




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Tom W

10-26-2002 20:06:00




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 Re: Re: WD Engine Upgrade in reply to Tom, 10-26-2002 19:00:54  
What is the difference between a WD short head and a WD-45 tall head? Are the push rods the same length?



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Brian G. NY

10-27-2002 06:21:08




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 Re: Re: Re: WD Engine Upgrade in reply to Tom W, 10-26-2002 20:06:00  
The tall head breathes better and the spark plug placement is better; more toward the center of the cylinder. The tall head has short "rockers" and the short head has tall "rockers". I believe the pushrods are the same length for both; at least the parts manual lists only one number for the pushrods for both the WD & WD-45.



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Brian G. NY

10-27-2002 06:36:46




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 Re: Re: Re: Re: WD Engine Upgrade in reply to Brian G. NY, 10-27-2002 06:21:08  
BTW, the tall head was introduced on the WD with "engine" #WD289001 some time in '50 or '51. I have a '50 with a short head and a '51 with the tall head. I think there may have been some further improvements to the tall head when the WD-45 was introduced. I have a couple of WD-45s, but I never compared their heads with the one on my '51 WD to confirm that.



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Tom W - WA

10-27-2002 19:17:44




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 Re: Re: Re: Re: Re: WD Engine Upgrade in reply to Brian G. NY, 10-27-2002 06:36:46  
Brian, thanks for the information on the heads. I am putting togeather a WD with a 45 crank, WD pistons and will go with a 45 head with some over size chev. valves installed. Hoping for 8.5=10 compression on a basic low cost home built pulling tractor.



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