Yz 400f to 426 cylinder swap

1 reply to this topic
  • yobigjay

Posted May 29, 2005 - 07:34 AM


Since the stroke is the same (60.1mm) can you swap the cylinder and piston to turn my 400 into a 426? Are the heads interchangeable (or do I have to get a 426 head) OR, has anyone sucessfully put a yz 450f engine into a 426 (400) frame.

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  • felony

Posted June 05, 2005 - 02:51 PM


im pretty sure the cylinder heads will interchange with the 400 and 426.cylinders will as well,i think the 426 has a longer stroker though,thats where the extra displacement comes from

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