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Thread: ascott 500 head

  1. #1
    350xrider911 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    ascott 500 head

    will a ascott 500 head fit onto a 350x im putting a 425 bigbore kit and i want bigger valves what will it take to make it fit

  2. #2
    Join Date
    Jul 2006
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    iowa
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    451
    from the looks of it its quite a bit of machining and work, but i really bet it pays off in the end. http://www.3wheelerworldforums.com/s...ad.php?t=78141

  3. #3
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    Quote Originally Posted by 350xrider911 View Post
    will a ascott 500 head fit onto a 350x im putting a 425 bigbore kit and i want bigger valves what will it take to make it fit
    the ascott head is built to work with a 89mm bore...add a 6mm stroker to this and you got a 460cc motor that will out run most

    with the 89mm bore (xr500 piston and sleeve) you get to run off the shelf parts and gaskets, not hard to find custom stuff

    just read my thread hondahaulic posted and see what it takes
    80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
    90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
    00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
    2012.....Replaced the 350x motor for a 444cc YZ426
    WWW.HREATV.COM

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