2007 wr/yz frame swap?

can anybody confirm for me that the 07 aluminum frames of a wr450 and yz450 are interchangable?

they have different part numbers.... will a yz450 motor bolt directly into a wr frame?

buehller, buehller, Grayracer???? anyone???

can anybody confirm for me that the 07 aluminum frames of a wr450 and yz450 are interchangable?

they have different part numbers.... will a yz450 motor bolt directly into a wr frame?

buehller, buehller, Grayracer???? anyone???

They look Identical on the schematics accept for one piece where the triple clamps mount. The WR frame is $500 cheaper though. Heres the links, not sure if it helps.

2007 YZ450F http://www.hondaeasttoledo.com/fiche_section_detail.asp?section=556227&category=Motorcycles&make=Yamaha&year=2007&fveh=12915

2007 WR450F http://www.hondaeasttoledo.com/fiche_section_detail.asp?section=554763&category=Motorcycles&make=Yamaha&year=2007&fveh=12882

???? anyone know?

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