Re: Johnson 10 power head upgrade?

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June 22, 2015 at 8:05 pm #18694
chris-p
Participant

    If you want to upgrade your pre ’61 10hp powerhead, order the following:

    Wrist Pin 307849 x2
    Connecting Rod 378330 x2
    Piston 378285 x2
    Needle Bearing 378251×2
    Big End Needles 378150 x2
    Piston Rings 378416 x2
    Circlips 302577 x 4

    Then if you have her apart, might as well change the carbon seal o rings

    301967 x2