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Thread: 350x head

  1. #16
    Poco Loco's Avatar
    Poco Loco is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Not at all. When theres a 500 sleeve in the cylinder, its a 420cc monster with a stock stroke. Who ever wrote that article your read was dead wrong
    Shart Guard .......Use it !

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  2. #17
    Join Date
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    Quick question.. anyone know where I can find flat faced valves??
    1985 ATC 350X working progress
    1983 ATC 200X for sale

  3. #18
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    5,911
    Quote Originally Posted by Icouldntthink View Post
    Quick question.. anyone know where I can find flat faced valves??
    What and why?



    PREVIOUS KAWASAKI INTERNATIONAL R & D PROJECT ENGINEER AND ATV DEPARTMENT SUPERVISOR AND THE ONLY PERSON ON 3WW WITHOUT AN EDIT BUTTON OR A STAR

  4. #19
    Join Date
    Feb 2017
    Location
    Louisiana
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    33
    Quick question.. anyone know where I can find flat faced valves??
    1985 ATC 350X working progress
    1983 ATC 200X for sale

  5. #20
    Join Date
    Feb 2017
    Location
    Louisiana
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    More compression and power
    1985 ATC 350X working progress
    1983 ATC 200X for sale

  6. #21
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    Quote Originally Posted by Icouldntthink View Post
    Quick question.. anyone know where I can find flat faced valves??
    You already asked that. See post 20.


    PREVIOUS KAWASAKI INTERNATIONAL R & D PROJECT ENGINEER AND ATV DEPARTMENT SUPERVISOR AND THE ONLY PERSON ON 3WW WITHOUT AN EDIT BUTTON OR A STAR

  7. #22
    Join Date
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    Sold, I'm buying it Tom. There is a PM in your inbox.
    • 1985 Honda 250SX
    • 1985 Honda 350X
    • 1985 Honda 350X
    • 1986 Honda 250R



    “I Love The 350x. It’s So Bad”

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  8. #23
    Join Date
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    Location
    Louisiana
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    Sorry my phone is acting up.
    1985 ATC 350X working progress
    1983 ATC 200X for sale

  9. #24
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    .
    ah, ok, you posted while I was replying.

    Well, the difference between tulip valves and flat head valves in your bike is probably around 1/3 of a cc, which will increase your compression by a nearly indiscernible amount like maybe 1-2 psi which is insignificant, especially when you already have 220. Also, increasing valve weight is not the right direction to go when building a high perf engine.

    If you want more power you need to look in other areas and make large changes but you need to decide if you want more power in the low end range which means increasing the displacement or more power in the high end which means spinning the engine faster.


    PREVIOUS KAWASAKI INTERNATIONAL R & D PROJECT ENGINEER AND ATV DEPARTMENT SUPERVISOR AND THE ONLY PERSON ON 3WW WITHOUT AN EDIT BUTTON OR A STAR

  10. #25
    Join Date
    Feb 2017
    Location
    Louisiana
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    I'm planning a turbo upgrade as well as a different motor as to not tear up my oem casings..


    P.s. my bike is a complete #'s matching bike and is #2804 off the assembly.. or atleast that's the production number I was given when my Vin was read and scanned
    1985 ATC 350X working progress
    1983 ATC 200X for sale

  11. #26
    Join Date
    Feb 2017
    Location
    Louisiana
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    33
    I'm planning a turbo upgrade as well as a different motor as to not tear up my oem casings..


    P.s. my bike is a complete #'s matching bike and is #2804 off the assembly.. or atleast that's the production number I was given when my Vin was read and scanned
    1985 ATC 350X working progress
    1983 ATC 200X for sale

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