Re: OMC 40 hp Powerhead on 35 hp Midsection

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September 4, 2015 at 8:04 am #23171
enrico-italy
Participant
    quote Mumbles:

    So Pappy, I have a ’58 Big Twin here with a frozen powerhead and a later 40 could be adapted to it?

    I’m supposed not.

    All the Bigtwin 40 newer than 1958 had the "matrioska type " leg, so the PW base flange is different.

    Worktwin or Skitwin 40 PW can fit the flange but not the driveshaft spline…