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Thread: Top end

  1. #1
    PWCToday Newbie azx2's Avatar
    Join Date
    Aug 2012
    Location
    arizona
    Age
    35
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    12

    Top end

    Hello

    So I am currently doing a Top end on my x2. I have all the paper work from the last build it had 7yrs ago. Setup is:
    650 cases with 650 crank and rods.
    750sp cylinder with 81.5mm wiseco pistons.
    The problem I am having is finding that big of pistons for 640 rods. I haven't called wiseco yet because they are closed for the weekend was just wondering if anybody else has done this set up or have any other ideas on where to go.

    Thanks
    Mark

  2. #2
    PWCToday.com Is My Home Away From Home Rushford_Ripper's Avatar
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    Dec 2009
    Location
    Buffalo
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    30
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    5,529

    Re: Top end

    I had an x-2 with a similar mod years ago that I bought, could not find pistons anywhere for the life of me...


  3. #3
    Top Dog bandit88's Avatar
    Join Date
    May 2014
    Location
    Two Rivers WI
    Age
    29
    Posts
    1,700

    Re: Top end

    Is this to stay legal for a race class? Why not just run a 750 bottom?

    Most likely you will need to have some bushings made so you can use the 18mm 650 rods and wristpins with some 22mm BP pistons.
    -95 750SXI
    -86 440 undergoing PJS800 conversion
    -90 TS650

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