09 450 cylinder head fitment

2 replies to this topic
  • Reke208

Posted March 12, 2015 - 12:50 PM


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.



Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted March 12, 2015 - 01:19 PM


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.

  • Reke208

Posted March 16, 2015 - 10:31 AM


thanks for the heads up!

Related Content


2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

YZ450F 03 Sparks driving me crazy by SirAttard

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.