Head gasket thickness

Discussion in 'PSI Superchargers Tech Questions' started by WIDEOPEN231, Oct 2, 2021.

  1. WIDEOPEN231

    WIDEOPEN231 Member

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    Ok misleading heading. I am trying to find out how thin a head gasket I can get by with. I bought a set of rods that are .020 shorter than I have. I knew it would cause me some compression, but hell its a bracket engine.Well its my old T/A stuff being disgraced and run as bracket engine. TFX block and KB brand new KB crank with MGP rods is little over kill. Yes I feel bad about doing it,but its sitting here.

    This is NA motor and probably will not see the blue jugs till I get new pistons and cpl more points compression. So just alky injected. How thin have ou run or knw someone who has run?
     
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  2. KENNETH JORDAN

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    I would think since it is a NA engine, that a .062 copper would safe. Maybe even a .050.
     
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  3. kosky racing

    kosky racing Comp Eliminator

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    if that combo worked before -you should be able to get by with a twenty thou. thinner gasket than you ran before
     
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  4. WIDEOPEN231

    WIDEOPEN231 Member

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    I know I can go lot thinner than .050. Have ran .040 with 50 lbs boost. So no boost. Have friend who can cut me a set and thinking about .020 set.

    Heck worst that can happen is blow gasket.I doubt a alky injected motor going to burn head and block like it does with a blower. Now I know blower will do burn one. Hell I won second national event title with block that had one end filled with Marine tek from burning it that same weekend.
     
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  5. kosky racing

    kosky racing Comp Eliminator

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  6. kosky racing

    kosky racing Comp Eliminator

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    the important thing is how close the piston to deck is-also no thinner than 40 with o-rings
     
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  7. WIDEOPEN231

    WIDEOPEN231 Member

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    WELL WITH NEW RODS i WILL HAVE .020 EXTRA PISTON TO HEAD. Already running .050/ I had a set of .030 but can't find them. Obly copper I can find to make a set out of is .021 or .040
     
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