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prop

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    3.jpg

    1970 Morgan 38 Hauled out
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    1970 Morgan 38 Hauled Out
  3. _Jason_

    Transmission Gear Ratio and Prop Sizing

    We have a rebuilt Perkins 4-108 and ZF-12-M transmission with the higher forward ratio of 2.63/1 in our 384. However, I believe the prop is same as original - 3 blade 16x11. It doesn't seem to get the boat to speed without maxing rpm from the Perkins. I believe the original trans was closer to...
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