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Author Topic: Mainbearing bore Dia.  (Read 2311 times)

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Heo

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Mainbearing bore Dia.
« on: February 10, 2016, 06:52:26 AM »
What is the mainbearing bore max and min Dia.?
In the block not inside the bearings
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KMcCullah

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Re: Mainbearing bore Dia.
« Reply #1 on: February 10, 2016, 08:04:35 AM »
I don't know what the actual FoMoCo tolerance was for the main bores (maybe Howie will take a look at one of his original block blueprints for us) but I've seen 2.941 which is on the tight side I think.   2.9415 seems like a more "happier" number. 
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Kevin McCullah

ScotiaFE

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Re: Mainbearing bore Dia.
« Reply #2 on: February 10, 2016, 09:07:04 AM »
Main Bearing bore.
Drawing I have 2.9425" - 2.9417"
1967 Manual 2.9420" - 2.9412"
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Heo

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Re: Mainbearing bore Dia.
« Reply #3 on: February 10, 2016, 09:51:13 AM »
Thank you  guys
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