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91 500 engine to 02 crf450r chassis

Posted: October 12th, 2014, 3:30 pm
by Wiley13
I have been drooling over a 500 af conversion for a long time and finally found the right deal on a blown 02 450 and a 91 500 engine. Im finding very little info on the 02-04 frame. Has anyone done this swap or know where i can find info/parts? I tried cp500 with little results.

Thanks

Posted: February 20th, 2015, 6:51 pm
by Hondadug
I did it. The reason you can't find much is that the rectangular frame prevents you from buying one of those sweet billet y's. I got such a screaming deal on a roller I couldn't help myself. I was a machinist and had a buddy CNC a Y. Check out my build.

Posted: February 20th, 2015, 6:53 pm
by Hondadug
I did it. The reason you can't find much is that the rectangular frame prevents you from buying one of those sweet billet y's. I got such a screaming deal on a roller I couldn't help myself. I was a machinist and had a buddy CNC a Y. Check out my build.

Posted: May 7th, 2015, 8:27 pm
by blackz34
I did one too, in a 2004 crf450 frame.

Click the link in the first post to see picture of my build.

http://bannedcr500riders.com/board/view ... highlight=

Posted: July 11th, 2015, 6:29 pm
by bigcopj
blackz34 wrote:I did one too, in a 2004 crf450 frame.

Click the link in the first post to see picture of my build.

http://bannedcr500riders.com/board/view ... highlight=
What air box boot did you use for your conversion?

Posted: July 13th, 2015, 7:07 pm
by blackz34
pretty sure it is from a 1998 CR250. It is rubbing a little bit on the frame in the upper part I tried to heat it with a heat gun to "push it ". Not perfect but it dis the job.