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View Full Version : athena 468 big bore kit



ozzies450
04-28-2008, 02:29 PM
I have a 04 yfz 450 the motor is bone stock.I like the reliability, I want to know if there are any problems with the 468 and what they might be thank you.

#17YFZRACER
04-28-2008, 03:46 PM
you might need a larger radiator to cool it down because it might make more heat.