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Tractor Pulling Discussion Forum

Re: Rocker ratio for Case 251 cubic inch engine ??

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11-21-2012 04:31:06

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You need to talk to Gary Baker, I'm sure he has that info. He watches this site so hopefully he'll pop in.


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11-22-2012 04:31:04

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 Re: Rocker ratio for Case 251 cubic inch engine ?? in reply to mEl, 11-21-2012 04:31:06  
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Thanks mEL, already talking with Gary. But didn't want to bother him since his wife just came home from the Hospital.

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11-22-2012 04:57:37

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 Re: Rocker ratio for Case 251 cubic inch engine ?? in reply to Dodgeit, 11-22-2012 04:31:04  
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Yes, I'm in touch with him also via texting and am aware of his situation.
I have done a lot of work on those engines but mostly in a rebuild situation and never got technical as far as ratios were concerned. I see that one of the builders advertises ratio rockers for the 504, maybe Murphys ?? They should fit most of the big engines. I hope to be having DC roller rockers for one of my own projects if I ever get to it.

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11-23-2012 18:09:33

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 Re: Rocker ratio for Case 251 cubic inch engine ?? in reply to mEl, 11-22-2012 04:57:37  
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I talked to that builder and got 1.46 for Ex and 1.50 on the Int.

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