Results 1 to 2 of 2

Thread: 400ex ??

  1. 01-05-2008, 09:07 PM #1
    fast2007
    fast2007 is offline Senior Member
    Join Date
    Apr 2007
    Posts
    305

    400ex ??

    I see 400ex with 450 carbs, anyone No how much gain?With stock or motor work..
    Reply With Quote Reply With Quote
  2. 01-06-2008, 09:20 PM #2
    Sandman69's Avatar
    Sandman69
    Sandman69 is offline Senior Member
    Join Date
    Aug 2007
    Location
    Utah
    Posts
    119
    Go on the 400ex forum and there is a big sticky about this whole topic. I changed mine and noticed a huge difference. How ever I already had a 440 kit and cam in the engine once I did the swap.
    2002 440EX
    Stage 2 cam, Port & Plolished, 12:1 comp, K&N, 450R 42mm Carb, Full FMF exhaust, Custom +2 Swing arm and A-arms, Graphics... Way to much to list. Did I mention NITROUS!!!
    48 Hp with out and 68Hp with..
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules