09 450 cylinder head fitment

Hello All,

 

I recently had the 2009 yz450f I just purchase (damn CL) topend grenade on me and I am curious as to what other year bikes/atv cylinder heads will fit.

 

2007-09 yz450, I assume the same is for the WR. How about the yzf quad? Trying to find a serviceable replacement that won't break the bank.

 

TIA,

Well, not exactly.  The carb model quad heads and the '07-'10 WR heads have provisions for air injection that have to be blocked off, and a couple of other details.  Best off staying with an '06--'09 YZ450F head. 

 

You should also contact Fast Heads or Engine Dynamics about reconstructing yours, no matter what it looks like.  You may be pleasantly surprised by what they can do.

thanks for the heads up!

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