Reply To: 1956 Johnson 30hp, RD-18

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March 21, 2019 at 9:33 am #171661
gjonz
Participant

    There are nearly no differences in these motors. The 35 has bigger pistons. I don’t think the hoods, leg, or anything else is different. The crank are the same in the 25-30-35’s…and early 40’s. So the driveshaft should not be an issue.

    Should be an easy swap.

    Greg