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Thread: SBC Head gasket question
          
   
   

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  1. 07-31-2007 08:12 AM #1
    jlbruce
    jlbruce is offline CHR Member
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    SBC Head gasket question

     



    I am building a SBC with Edelbrock aluminum heads and intake.

    I noticed the head gasket between the 3/5 and 4/6 cylinders has small (1/8") holes, but the block and heads water channels have much larger holes (1").

    Can I drill out the head gasket to match the heads/block? I never drive my car in the winter so I would like to keep it as cool as possible.
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  3. 07-31-2007 10:36 AM #2
    Racecar100
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    Just put it on it won't effect it at all.
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  4. 08-01-2007 04:59 AM #3
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    erik erikson
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    Quote Originally Posted by jlbruce
    I am building a SBC with Edelbrock aluminum heads and intake.

    I noticed the head gasket between the 3/5 and 4/6 cylinders has small (1/8") holes, but the block and heads water channels have much larger holes (1").

    Can I drill out the head gasket to match the heads/block? I never drive my car in the winter so I would like to keep it as cool as possible.
    You are not by chance talking about the "steam holes" in a 400 SBC head gasket.
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  5. 08-01-2007 05:55 AM #4
    jlbruce
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    Erik

    Yes, they are the small holes that line up with the water channels on a SBC (I have a photo on my "See Photos")
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  6. 08-01-2007 06:00 AM #5
    erik erikson's Avatar
    erik erikson
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    Quote Originally Posted by jlbruce
    Erik

    Yes, they are the small holes that line up with the water channels on a SBC (I have a photo on my "See Photos")
    Sorry,I did'nt see your photo's.
    Those are not the 400 steam holes.
    Yes,just leave the gaskets how they are.
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  7. 08-01-2007 12:03 PM #6
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    thesals
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    those holes should stay like that, they're supposed to slow the water down to allow more heat transfer before getting back to the radiator
    just because your car is faster, doesn't mean i cant outdrive you... give me a curvy mountain road and i'll beat you any day
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