Putting an 426 motor in a 400 frame

4 replies to this topic
  • motocrosschump

Posted August 18, 2004 - 01:16 PM


I just bought a 426 motor off ebay..http://cgi.ebay.com/...&category=34284
is it a bolt on?

  • aremean_troy

Posted August 18, 2004 - 09:38 PM


i think it will bolt right on but you will have to get the 426 head stay to mount from the frame to the head.the 400 headstay will be too long

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  • Matt96xr6

Posted August 18, 2004 - 10:32 PM



The 02 motors use a larger 18mm pivot bolt shaft vs the previous years 17mm for 98-01.

If you can find a collar to work to fill up the 1mm gap, then yes.


Posted August 19, 2004 - 10:00 AM


Any machine shop should be able to quickly fabricate a bushing.

Bonzai :thumbsup:

  • motocrosschump

Posted August 19, 2004 - 10:05 AM


thanks bro's

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