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Thread: head gasket coolant flow question
          
   
   

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  1. #1
    trenchdog73's Avatar
    trenchdog73 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1973 Chevy Nova
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    head gasket coolant flow question

     



    While removing my heads to do some work I noticed That the wholes from the block to the manifold coolant cross over are alot bigger then the wholes in the gasket. Is this done on purpose to restrict the flow? would making the gasket wholes bigger improve cooling? its a sbc by the way. just curious

  2. #2
    BOBCRMAN@aol.'s Avatar
    BOBCRMAN@aol. is offline CHR Member Visit my Photo Gallery
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    LEAVE THE HOLES ALONE! Many hours have been spent developing the size and placement of those holes. If you open them up you will cause massive internal flow problems and uneven heat dissapation.

  3. #3
    dr_bowtie's Avatar
    dr_bowtie is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1957 chevy Belair
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    Bobs right....Those act like restrictors...just like the thermostat...If the holes are to big....coolant moves too fast thus not efficiently carrying away heat...

    These hole are engineered to get the best most efficient heat dissipation and coolant heat absorbtion....

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