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Thread: tri z big bore

  1. #1
    Join Date
    Aug 2008
    Location
    louisiana
    --
    1,499

    Red face tri z big bore

    I have a friend thats looking to step up to a big bore on his tri z.are there any kits still available.if so can you give me the contact info.
    Signature pic removed,becuase of no helmet.

  2. #2
    Join Date
    Mar 2010
    Location
    Arizona
    --
    843
    I'm interested in this too. I know Sprock Racing made them a few years ago but he may have sold out. My only concern with a Z big bore would be the availability of pistons in the future.

  3. #3
    Join Date
    Mar 2010
    Location
    Abrams, Wisconsin
    --
    739
    i'm pretty sure the kit used an available piston. there was a thread a couple months ago saying he may be making some more, also.
    86 tri z - might be nearly done throwing money at it! (good thing, the hondas are getting jealous!)
    86 250sx - old reliable
    83 atc 70-new project for me and the boy
    another 82 110
    a bunch of golf carts for the wife and kids
    -gone but not forgotten-
    82? 110 - why did i sell it??
    84 225dx - meh, it was a pile

  4. #4
    Join Date
    Jun 2012
    Location
    hinsdale,ny
    --
    120
    I've heard good things about the sprock kits but haven't been able to find one

  5. #5
    Join Date
    Aug 2008
    Location
    louisiana
    --
    1,499
    Bump.can someone give me Corey sprock's contact info.
    Signature pic removed,becuase of no helmet.

  6. #6
    Join Date
    May 2011
    Location
    eden,ny
    --
    3,481
    I spoke with corey a few days ago and told him there may be a few guys wanting a tri z kit.He said right now he has to take care of financial obligations and doesn't have the cash to put up for making the kits. I mentioned maybe a preorder and he said "we have seen how that went in the past" so I think right now you will just have to wait it out until he is willing to make up some kits.His contact info can be found in the tecate group in the 84-85 cool head thread.

  7. #7
    Join Date
    Jan 2003
    Location
    Cincinnati, OH
    --
    3,289
    Quote Originally Posted by just ben View Post
    I spoke with corey a few days ago and told him there may be a few guys wanting a tri z kit.He said right now he has to take care of financial obligations and doesn't have the cash to put up for making the kits. I mentioned maybe a preorder and he said "we have seen how that went in the past" so I think right now you will just have to wait it out until he is willing to make up some kits.His contact info can be found in the tecate group in the 84-85 cool head thread.
    I have also talked to corey and what ben says is a 100% true, your just gonna have to wait.
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  8. #8
    Join Date
    Jul 2012
    Location
    Seattle, Washington
    --
    1,543
    I would prepay for 2 big bore kits if they would make em again. I'm also interested in finding a used one for my tri z.

  9. #9
    Join Date
    Jun 2010
    Location
    House Springs MO
    --
    5,494
    Quote Originally Posted by 3 Wheel Drive View Post
    I would prepay for 2 big bore kits if they would make em again.
    My reading comprehension skills are lacking at times, but I do believe that this part of the equation has already been discussed and is not the issue as far as the future of the Big Bore kits are concerned.

  10. #10
    fabiodriven's Avatar
    fabiodriven is offline Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers. Catch me if you can
    Join Date
    Jun 2008
    Location
    The woods
    --
    10,516
    I highly doubt Sprock is the only guy on the planet who can do a big bore Tri-Z.
    85 Tri-Zinger 60
    85 ATC250SX
    86 ATC250SX
    87 ATC250SX
    02 XR650L conversion
    84 ATC 480R

  11. #11
    Join Date
    Oct 2010
    Location
    blackstone/ma
    --
    1,491
    These guys say they build custom big bore kits? Don't know a ton about them but it's a lead

    http://rpmmfg.com/

  12. #12
    Join Date
    May 2012
    Location
    United States
    --
    98
    Harry klemm is still making big bore stroker kits for the z go to http://www.klemmvintage.com/ for contact info

  13. #13
    Join Date
    Mar 2010
    Location
    Abrams, Wisconsin
    --
    739
    i comepletely understand where corey is coming from as far as pre order, i'm in no hurry anyways. but does anyone know if his kits are bolt on, or do the cases need modification? and even a rough ballpark price? you know, so a guy can start saving up?
    86 tri z - might be nearly done throwing money at it! (good thing, the hondas are getting jealous!)
    86 250sx - old reliable
    83 atc 70-new project for me and the boy
    another 82 110
    a bunch of golf carts for the wife and kids
    -gone but not forgotten-
    82? 110 - why did i sell it??
    84 225dx - meh, it was a pile

  14. #14
    fabiodriven's Avatar
    fabiodriven is offline Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers. Catch me if you can
    Join Date
    Jun 2008
    Location
    The woods
    --
    10,516
    My suggestion would be to call whatever machinist you're thinking of using. There's more than one way to skin a cat and I doubt any two guys do it the same exact way.
    85 Tri-Zinger 60
    85 ATC250SX
    86 ATC250SX
    87 ATC250SX
    02 XR650L conversion
    84 ATC 480R

  15. #15
    Join Date
    May 2012
    Location
    United States
    --
    98
    Harry klemm quoted me $700-$800 and i think corey is doing them for $600-$700

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