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Thread: 400 ex with 350x engine

  1. #1
    Join Date
    Mar 2004
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    400 ex with 350x engine

    Has anyone tried this?
    Ride it like you stole it

  2. #2
    Join Date
    Dec 2003
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    71
    Um...Why?
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  3. #3
    Join Date
    Mar 2004
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    Because the 400ex sucks ass and the 350x roots ass.
    Ride it like you stole it

  4. #4
    84250r is offline Clean enough to eat a potpie off of Teaching quads a lesson
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    As i rememeber Speedbump( a member on here) has a 400ex with a 350X motor in it.
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  5. #5
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    Nov 2002
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    Oregon
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    i would take a 400ex motor over an 350x motor any day

  6. #6
    Join Date
    Jan 2003
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    NE Arkansas
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    Quote Originally Posted by BigBoy3
    Because the 400ex Bites arse and the 350x roots arse.
    how? explain?
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  7. #7
    Join Date
    Mar 2004
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    I am going by what Ive heard on these boards. I have read tons of posts on how stock 350x's have smoked lightly modified 400ex's and none of the posts have been disputed.Plus, I could probably get a ex rolling chassis for around a grand and a strong X engine for about 5-600 and have a better quad than the ex for half the price.
    Ride it like you stole it

  8. #8
    Join Date
    Mar 2003
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    why not just get a 350x and leave it at that?? if you do put he engine in a quad, put it in a 250x chassis. that will be easier. there are palces that sell kits to make the engine fit.
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  9. #9
    thehickfarmer is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    well is it possible that the 350x is faster beacuase it is also A HELL OF ALOT LIGHTER. then the 400ex...and the 400ex also has more reistance.. it makes sence to stick to a COMPLETE 350x if you wanna go fast

  10. #10
    eh_tee_see's Avatar
    eh_tee_see is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    ah good, someone actually KNOWS why the 350 wastes the 400... haha, stick a 350x engine in a 300ex or a 250x.. but sticking it in a 400ex is retarded.
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  11. #11
    Eric is offline New to the board Arm chair racerNew to the board
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    this dude i went ridin with a while back had a 250ex frame with a 350x motor in it,bored it to a 400 it had 350ex plastics and 400ex shocks, swiingarm axle a-arms and tires.(it was a mutt quad) but it kept up with our 400ex's

  12. #12
    thehickfarmer is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    if your really retarted.. and u wanna go fast and trailprotrailpro not worried about comfort.. just put the 350 motor in a atc 70.. and trailprotrailpro all set 2 fly

  13. #13
    Join Date
    Oct 2002
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    The 400ex and 350X motors have the same HP output so a swap would do no good. The 400EX has more aftermarket power upgrades so I would stick with that.
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  14. #14
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    the reason that 350 smokes a 400ex is because it is much lighter
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  15. #15
    Join Date
    Mar 2004
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    Thanks for all the posts. And no, im not retarded as of yet. Holler at me in a few more ounces. By the way, I just found out there is yet another option - crf 450. The ad in DirtWheels said 400$ for a complete engine so,scew the 350 and 400ex engines.
    Ride it like you stole it

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