2002 sportsman 400 top speed is?
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the 400 is faster than the 500?
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It looks like the 400h.o. is actually a 455cc whereas the 500h.o is a 499cc. The difference between the two is about 7 h.p.. Not alot until you consider the numbers are 29.2 and 35.7 h.p.. I do not even see the non h.o. engines available for the 400's and 500's anymore so I can't tell you what the difference was. Maybe someone else can.