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Thread: 31.8 ci thin head gasket

  1. #1
    Team Member
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    Default 31.8 ci thin head gasket

    Does anyone know where I can find the thinner/higher compression head gasket for a 30hp evinrude? I know they exist, but can't seem to locate one. Thanks for reading!

  2. #2
    BoatRacingFacts VIP
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    Some of the aftermarket gaskets seem to be thinner by up to 0.01” compared to an oem gasket. You can always make a copper sheet gasket or plane the head. Here is a vid of how I plane the OMC 31.8 heads.
    https://m.youtube.com/watch?v=ooG2ZI6Wdys

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