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Speed Freak
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12,730 Posts
Discussion Starter #1
Just letting you guys know, did a first hand side by side look at the heads....

the 06-07 has a 1mm smaller INTAKE valve.....
The 06-07 throttle bodies do not fit well into the 04-05 intake boots so you need the 06-07 boots on the 04-05 head....
the thermostat housing on the 06-07 has a fitting that points to the right side of the bike the 04-05's points to the left.... so the hose will not fit if you use a 04-05 head.

p.s. I found ANOTHER 05 head with a broken valve spring retainer!!!

Titanium is coming my way!
 

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139 Posts
Just letting you guys know, did a first hand side by side look at the heads....

the 06-07 has a 1mm smaller INTAKE valve.....
The 06-07 throttle bodies do not fit well into the 04-05 intake boots so you need the 06-07 boots on the 04-05 head....
the thermostat housing on the 06-07 has a fitting that points to the right side of the bike the 04-05's points to the left.... so the hose will not fit if you use a 04-05 head.

p.s. I found ANOTHER 05 head with a broken valve spring retainer!!!

Titanium is coming my way!
where you get those retainers?

k
 

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Speed Freak
Joined
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12,730 Posts
Discussion Starter #6
lol not my motor dude lol, mines been very good to me :-D

its just customers of mine.....

carpenter I think has a spring and retainer kit for 350 or so, schnitz carries them, I believe zx14 kit will work as well
 

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2,427 Posts
You by chance did not cc the heads for comparisons? Stock heads of course, they the same other than what you mentioned above?
 
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