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Thread: sst60 mid section question?

  1. #21
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    i think we are talking 2 different things here are we?

  2. #22
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    you can do as you wish, the fact still remains, the 15" stock exhaust adapter is about a 1/2" shorter then the 20" addapter, seems like alot of drive shaft spline to be givin away on a corse spline....., you can mill it down, the older ones are less work

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  3. #23
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    Quote Originally Posted by Fast Fred View Post
    you can do as you wish, the fact still remains, the 15" stock exhaust adapter is about a 1/2" shorter then the 20" addapter, seems like alot of drive shaft spline to be givin away on a corse spline....., you can mill it down, the older ones are less work

    Yup, I measured the two plates tonight, the difference by my measurements was 5/16th.

    I'll get a sst60 adapter plate measured later to see how it compares to the two others.

  4. #24
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    The 49" plate measures 1.75" the 56 inch plate measures 2.075" you are giving up .325". This still leaves .800" of engagement and the o ring is still inside the crank!! Is it the right thing to do? I have run 3.0 and 3.3 drag motors with .750 engagement putting out a hell of a lot more horsepower. I don't see a problem. As far as milling the plate , Yes you can mill the top. As far as seaway, they are looking at about 800.00 when and if he gets them. Those of us on some kind of a budget will still strive to have fun.

  5. #25
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    Quote Originally Posted by ultrafast30 View Post
    The 49" plate measures 1.75" the 56 inch plate measures 2.075" you are giving up .325". This still leaves .800" of engagement and the o ring is still inside the crank!! Is it the right thing to do? I have run 3.0 and 3.3 drag motors with .750 engagement putting out a hell of a lot more horsepower. I don't see a problem. As far as milling the plate , Yes you can mill the top. As far as seaway, they are looking at about 800.00 when and if he gets them. Those of us on some kind of a budget will still strive to have fun.
    Seaway have them and they are less than that.
    I just bought one ( ate a bit of budget)

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