Head Gasket Orientation: Which Side Up or Down? 450 OEM

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  • caltrop
    • Mar 2026

    #1

    Head Gasket Orientation: Which Side Up or Down? 450 OEM

    '80 GS450, New OEM Gasket. Two sides are different, but which is which? Nothing printed on it to indicate (just some white crap on one side). Different from the one I took off, so I can't tell that way either.


  • Toasty

    #2
    IMO, I think the bottom one is facing up. The copper (?) rings around the cylinders are facing up so it will seal the to the aluminum head.

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    • Guest

      #3
      To be honest I don't think it matters. All oil ports have o-rings so....

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      • cowboyup3371
        Forum LongTimer
        Past Site Supporter
        • Apr 2010
        • 14006
        • In Ohio Now

        #4
        If it's like my base gasket, just make sure the holes line up properly.
        Cowboy Up or Quit. - Run Free Lou and Rest in Peace

        1981 GS550T - My First
        1981 GS550L - My Eldest Daughter's - Now Sold
        2007 GSF1250SA Bandit - My touring bike

        Sit tall in the saddle Hold your head up high
        Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
        and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

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