400ex heavy duty cam chain

[sc400ex_rider]

hi i heard that the heavy duty cam chain is off a crf450..?

[Franky G]

yup a 2002 CRF450 fits and is stronger then stock !

[GPracer2500]

All years of the CRF450R use the same cam chain. The 06+ TRX450R/ER uses this chain as well.

Honda part number 14401-MEB-671.

[jrafter]

is there any need for a stronger cam chain on a stock 400 or is this just for a modded motor.

and about how many hours should you get out of a cam chain?