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Prop upgrade necessary?-gctid363519

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    Prop upgrade necessary?-gctid363519

    Hi all,

    I am in the early stages of replacing my broken 305 with a rebuilt 350. The boat originally had a 14" prop with a pitch of 19 (14x19). If I need to replace this prop due to the 350, what should I get? I'm sure there's more to it than that, but I'm a newbie boater... learning....

    Thanks!

    KC :-)

    #2
    Run the boat with the existing prop; make notes as to the max rpm and speed, contact Michigan Wheel and provide the hp of the engine, the gear ratio, type of drive, and propeller dimentions, size of boat and weight loaded, speed, then fill out the form for Prop-it and submit it. There are more factors than just HP.
    Pat says: DO-IT-RIGHT THE FIRST TIME!

    Bayliner 3870 "ALASKA33)
    Twin 350 GM power
    Located in Seward, AK
    Retired marine surveyor

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      #3
      Another way is to find a local prop shop that allows you to test a prop for desired results and exchange is needed.

      As stated, run with your current prop to get a benchmark and adjust size, pitch, blade count as needed.
      Phil, Vicky, Ashleigh & Sydney
      1998 3055 Ciera
      (yes, a 1998)
      Previous boat: 1993 3055
      Dream boat: 70' Azimut or Astondoa 72
      Sea Doo XP
      Sea Doo GTI SE
      Life is short. Boats are cool.
      The family that plays together stays together.
      Vice Commodore: Bellevue Yacht Club

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