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  1. #1
    srjrinc's Avatar
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    Who makes this piston ???

    This is of a heavily modified 1200R with Speedworxs Head and Pipes. I wasn't using
    the correct octane and now I'm trying to replace this piston..(rear#3) ....So any help would be
    greatly appriciacted! Below are a few clues or identifiying marks that can maybe help...

    This is a flat-top piston. It weighs 13.7 Oz. & is standard diamiter 79.89mm
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  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    art makes the factory pistons for the 66v

  3. +1 by:

    WFO

  4. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    art also makes the factory pistons for the 66v

  5. #4
    srjrinc's Avatar
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    so your telling me its stock????

  6. #5
    Almost's Avatar
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    I heard of some people using flat top Kawasaki pistons. Maybe it's a OEM Kawasaki or aftermarket pro x(also made by art) Kawasaki piston. Hope that helps.

  7. #6
    srjrinc's Avatar
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    Quote Originally Posted by Almost View Post
    I heard of some people using flat top Kawasaki pistons. Maybe it's a OEM Kawasaki or aftermarket pro x(also made by art) Kawasaki piston. Hope that helps.
    thanks. I'll look into it. I was hoping someone out there would have more info.thanks!

  8. #7
    Happily Self-Employed WFO's Avatar
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    lets see the top

  9. #8
    srjrinc's Avatar
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    Quote Originally Posted by WFO View Post
    lets see the top
    According to Speedwex, they made this head & piston combo for the GPR for 2000 & 2001only.
    They used the stock pistons made by ART and had them machined flat or almost flat according to the pic.
    Just having a hard time finding this darn piston!
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  10. #9
    Happily Self-Employed WFO's Avatar
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    I remember talking about some stock pistons modified like that in a conversation with Tim Judge a few years back. You may shoot him an email.

  11. #10
    srjrinc's Avatar
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    is he with Speedwex ? If not can you PM me the address? Thanks !

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