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1992 Ciera Sunbridge 2855 Bravo 2 upgrade to Bravo 3-gctid823593

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    1992 Ciera Sunbridge 2855 Bravo 2 upgrade to Bravo 3-gctid823593

    I have a 1992 Ciera Sunbridge 2855 with a 7.4L 454 MAG Bravo GEN V. In 1992 it came with a Bravo 2 outdrive. I have located a lower drive from a 2005 5.0L, 2.20 ratio.

    From my research I think that should be a direct replacement. Im looking for any experience that could confirm this. Am I correct that my 1992 7.4L would also be geared with the 2.20 ratio. They didnt start equipping my model with the Bravo 3 until 1996 and I would like to update it to those specs.

    Any concerns, changes, advice?

    Also, I am trying to find out what size props I would need. If someone could tell me what their newer combo has, or advice as to what I should get I would be very appreciative.

    I welcome all comments and advice.

    TIA.
    1992 Bayliner Ciera 2855 Sunbridge 7.4L 454 MAG Bravo II
    1995 Wellcraft Martinique 2400 5.8L Volvo Penta DP 280

    #2
    I don't think that is the correct gearing for a big block. I thought the big blocks ran a 1.8 as they produce their horse power at a lower RPM. I would carefully research it before purchasing it.
    1988 Mainship 36 Sedan
    1995 2858
    1988 2655
    1987 2150
    Commercial/Industrial HVAC Service Tech.

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      #3
      That is what I am curious about. How can I check that to be sure?

      My engine serial Number is 811692

      the Bravo 2 serial Number is 744451

      If that helps.
      1992 Bayliner Ciera 2855 Sunbridge 7.4L 454 MAG Bravo II
      1995 Wellcraft Martinique 2400 5.8L Volvo Penta DP 280

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        #4
        Google Mercruiser gear ratios. Also I'm sure someone will chime in on this topic.
        1988 Mainship 36 Sedan
        1995 2858
        1988 2655
        1987 2150
        Commercial/Industrial HVAC Service Tech.

        Comment


          #5
          I can't help on the gear ratios, but my 2000 2858 7.4 MPI Bravo 3 has 20" pitch props. I'll look for my gear ratio.
          Jeff & Tara
          (And Ginger too)
          Lake Havasu City, AZ

          2000 Bayliner 3388
          "GetAway"
          Cummins 4bta 250s

          In memory of Shadow, the best boat dog ever. Rest in peace, girl. July 2, 2010

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