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450 R head

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Hey,

What year model crf 450R head will fit my bike.

I have a 2007 450X... Also what year model R head is the best and do they change with each year in regards to porting and how the power comes on etc etc..

Thanks.

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If you were to install 36mm intakes on your head is a good setup. What are you looking for powerwise? I know the stock X cams are pretty weak. Installing a Stage 1 or 2 Hotcams will really wake that motor up.

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the R head does not really add much without a cam, and even with there is not much to be added.

they will add some high rpm power, but unless you are racing at high speeds, they are not worth the $$.

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the R head does not really add much without a cam, and even with there is not much to be added.

they will add some high rpm power, but unless you are racing at high speeds, they are not worth the $$.

Agree.:thumbsup:

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Thanks for your replys... Well I have an athena 490 big bore kit, 2006 R cam, 2006 R system.. I just need to know what R head fits my bike ? Its almost time for me to change my intakes and my local machine shops are a blooody rip off.. Im from Australia and its cheaper for me to buy the R head with oem stainless from crfsonly.com then it is to have a local shop service my head and change the intakes, cut seats etc etc..

So I just need to know what year model R heads fit on my bike, ( 2007 crf450x )

Thanks.....

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You can actually go back to like '02/04 but it's slightly more involved, parts wise. Simple bolt on is '05+

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