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Thread: threaded hole in aluminum cylinder head
          
   
   

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  1. #1
    onemangang's Avatar
    onemangang is offline CHR Member Visit my Photo Gallery
    Join Date
    May 2004
    Location
    I.G.H.
    Car Year, Make, Model: SBC 400 pwrd 10th Anniversary Trans Am
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    137

    threaded hole in aluminum cylinder head

     



    Hey fellas I was wondering if anyone knew what the 5/8" threaded hole on edelbrock or most SBC aluminum heads are for. The hole is on each head on the left hand side, right below where you mount you exhaust headers or manifolds. I just plugged mine with a pipe plug. Anybody know? I have attached a pic. The hole I'm talking about is the one that the arrows are NOT pointing to. to the left of the arrows.

  2. #2
    viking's Avatar
    viking is offline CHR Member Visit my Photo Gallery
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    Jun 2003
    Location
    Branson area
    Car Year, Make, Model: 23 T, 53 FLH , 66 C-10 454, 03 CVPI
    Posts
    968

    Water temp sending unit
    Objects in the mirror are losing

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