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Pa.Pete 
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Joined: 01 Oct 2010
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 Topic: WD, WC engine ?
Posted: 31 Dec 2011 at 10:01am |
I was wondering if someone would tell me is there any difference internally or externally between a WC engine and an early WD (short head) engine?
Pete
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Michael Crowe
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Joined: 11 Sep 2009
Location: Kansas City
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Posted: 31 Dec 2011 at 10:05am |
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Pete, I think the WC, or at least some of them, had different sized main bearings. Happy New Year to you! Michael
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MNLonnie
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Location: Baxter MN
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Posted: 31 Dec 2011 at 10:57am |
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I believe that change happened in 1935, went from 2" to 2 3/8".
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Kip-Utah
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Posted: 31 Dec 2011 at 4:05pm |
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Aside from the really early blocks that you most likely will not encounter that had the smaller mains, the earlier WC blocks did not use as many head bolts as later WC/WD/WD45 blocks. Not sure when A-C changed the head bolt count but think it was some time after 1940. You can still put a later head on one of these earlier blocks. Externally all WC/WD blocks look the same. Kip
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DrAllis
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Posted: 31 Dec 2011 at 4:26pm |
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I would suspect if you tore down a 1948 model WC engine, it would be nearly identical to a 1948 WD engine except for the governor spring. Compression ratios should have been the same by then for gasoline models.
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David Maddux
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Posted: 31 Dec 2011 at 5:06pm |
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My dealers parts book showed around 6 different compression ratio option pistons for the WC
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Pa.Pete
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Posted: 31 Dec 2011 at 7:48pm |
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Thanks for the info everyone! That's kind of what I thought.
Happy New Year to you too Michael, and to everyone else on the forum!
Pete
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