2004 yfz head need info

[flying frenchman]

Need to replace my 450s cylinder head .On my 2004 I had my oil plug blow out on the front of the cylinder head causing a loss of oil to one of my cams causing it to grind into the cam journal.
The question I have is will the cyl head off a 2005 YFZ fit? or better yet a 2006 head.They look the same except for that they did away with the plug in the casting. The 2004 head is $876 U.S roughly $1249 Canadian. 2005 head is $856 U.S and the 2006 head is $ 604. Would be nice if I could use the 2006 head, sure would save me a pile of $$$.

 

[ghglenn]

Is it the cylinder or the head that you need? If cylinder, I would go after market. 488 BB kit's from CT Racing are inexpensive.



If it is the head....that sucks.

 

[flying frenchman]

It's the head. Yes it sucks.

 

[psullivan]

Check eBay out the stores usual have good deals. And the cnd dollar is better Than the usd so watch who you buy from

 

[flying frenchman]

I'l definitely buy a new head. Either from Babbits on-line ,Ronnies .com or a Canadian dealer if the price is right. I know the 2004 and 2005 have a small combustion chamber and the 2006 has a bigger one but flows better than the 04/05 head but I need to Know if the 06 head bolts right on. All the other part interchange but need to know on the head.

 

[psullivan]

ebay has new heads. just do a search. here is one.


call them they are great to deal with and are way cheaper than the prices you were told.

 

[flying frenchman]

Thanks psullivan. I did a search but I'm thinking I'll stick to a stock head with no porting done. This way I'll know it runs like it did before. I don't have the time to tune this quad so I'll let my kids ride it, so I'll keep it stock. I'll ride my Banshee.

 

[flying frenchman]

Thanks again psullivan. The head shown was from a YFZ 450R. Found another one for YFZ 450 wasn't gonna take it but now it make $$$ sense to me. $1040 for a head Candian $$$ and checked out a U.S. site and found a new one for $519+$50 shipping +duty ang gst. The bad part is it's one month away, told it has to come from Japan. Not to be crule I don't want my quad to glow on its own.
Ordered the head should be here next week. I guess for the money I save I guess I'll have to do some tuning.:d

 

[psullivan]

Im glad I could help. Now you have some more money for beer:d

 

[flying frenchman]

No beer here. Called this morning to check out make sure things were getting shipped out. Well turns out I bought Trinity cylinder race porting, not the head with porting like I thought, wasn't what I was expecting. So I asked how much for the new head and was told $500 . He had them in stock but were all ported, so I said ship it out. Still cheaper than Canadian.

 

[looneyrod27]

Whats this no beer stuff all about lol. I do believe that the 06-07 head will fit on the 04 cylinder. I think you would have to get the newer head gasket, the coolant ports are a little different but she should boilt right up. I did this with a yfz last year. Are you heading to brule for May long? A few of us from here in the Mac will be there and yes there will be beers and a mental midget with us haha. (TRXDEAN) haha

 

[flying frenchman]

Thanks Looneyrod 27. Checked on head gasket same one on 2004 and 2006-7. So that should be good. Any suggestions on Big Bores. Might need to replace cylinder also.. Cylinder works has a big bore same as ct racing but none available right now. Might even get stock one replated

 

[flying frenchman]

Oh Ya! I'm trying to work things out to go to brule May 21.
I sure hope so. Sure sounds like it's gonna be a good time.

 

[psullivan]

Ill be down there and will line up with you.

 

[flying frenchman]

You can line up and do some practice runs till I get there. I hope.
If not, it will be the next time.

 

[looneyrod27]

go with a cylinder works kit. I am building an engine for a friend now on a 2004 yfz. He bought the full kit from ebay. comes with stroker crank, 98 mm cyl, piston etc. also comes with complete gasket set and a top end gasket set and crank bearings as well. I think he paid less than 800 for the whole kit. Makes it a 501 cc i do believe. I will let you know how that works out.

 

[looneyrod27]

If you choose to replate your cylinder, I would recommend Mongoose Machining in BC. Top of the line work and a reletively quick turn around time considering it has to come all the way to Ft. Mac. I would imagine it would be even quicker to get to you.

 

[flying frenchman]

$ 290 at mongoose for replating, $250 cv-tech, $360 from yamaha in canada. U.S should be alot cheaper, and with the $ at 1.06 WHOOOHOOOO:d:d:d:d
Shippings probably $30.00+. Which way to go. Will keep on looking around for now.