2000 Wr400 convert to 2003 Yz450 cams (exhaust & intake)

Hi im sorry if this topic has been talked about already but I am new to thumper talk.


I have a 2000 Wr400, and my friend has an old set of 2003 Yz450 cams he gave me to make the auto decompression swap.


I have read all of the articles on making the 400s auto decompression and i feel confident in making that swap.


My Queston is, Can I swap out both cams, the exhaust and intake?


Wondering if anyone has done this and what the results were.


Thank you.

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