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Minneapolis Moline Tractors Discussion Forum
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u build

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Author 
colbys

01-18-2007 18:45:53




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I am putting together a bigger engine for my u and was wondering how many horse I am going to have? I offset ground a g crank wich gave me about 6 1/8 stroke. Then I bored it out to 4.42". Wich gave me about 389 cubic inches. I am going to us my 4206 heads, and I think that will give me about a 12 to 1 compresion ratio. Can anyone give me a formula to figure this out, or can someone just tell me what it will be.

Thanks a lot Colby

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