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Thread: HELP

  1. #1
    suck my wake's Avatar
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    HELP

    Does anyone have a spec sheet for a set of stock bore CP pistons handy? I have a set that are supposed to be for a stock bore but do not fit, they are too big. The spec sheet that came with them states bore diameter at 3.948 and they measuere out at 3.945 0.4" up from the bottom of the skirt like they are supposed to. I am wondering what the spec sheet for the stock bore pistons calls for, anybody have those numbers


  2. #2
    Mothman's Avatar
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    My book for an 08rxp:
    Measure 90deg from piston pin, stock is 3.935--3.936in, with a service limit of 3.933in.
    Piston/Cylinder clearance is 0.0009--0.0022in. Service limit of 0.004in
    Hope this helps.

  3. #3
    suck my wake's Avatar
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    Thanks anyway but I was looking for the specs on CP pistons not the stock oem ones

  4. #4
    ou812's Avatar
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    Thats what my spec sheet says and I bought 1st over 100.25 CP's.. Part # M9033

    Looks like you need #9032

    Standard Bore
    99.94mm = 3.9346
    OR
    100.00mm = 3.937


    1st oversize:
    100.25 = 3.9468
    Last edited by ou812; 09-28-2012 at 11:12 AM.

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