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400rider1985
06-13-2004, 05:35 PM
Does anyone know if you will have modify the engine brackets to put a crf450 motor in a 400ex frame?
Cody_300ex
06-13-2004, 06:27 PM
Originally posted by 400rider1985
Does anyone know if you will have modify the engine brackets to put a crf450 motor in a 400ex frame?

yes, thats not all you have to modify