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Discussion Starter #1
Does anyone know the horsepower of the 660?
 

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Seems to me I read on another forum where the grizzly was rated at 28 hp. Please don't quote me on this and I have been searching for the thread but still haven't found it yet. I will keep looking.....
 

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I'm thinking 30-35 stock... if you put in a K&N filter, a good pipe and properly jet it, you can expect an 8-10 hp increase. This is based on what I've heard from Raptor owners, too.

Rob
 

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I went through this a little while back. According to the shipping papers that come with the 660 at the dealership. The 660 CC Grizzly has 42 HP. I do not think this is the same for the 660 Raptor, and I am not sure if this HP is rated at the engine or at the rear wheels. I suspect engine, as I have seen DYNO reports that show lower numbers. Hope this helps.
 

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Discussion Starter #8
Thanks guys,

Man, a grizz has more horses than most small tractors, even some bigger ones only have 30 to 40 hp. no wonder the thing is a rocket on four wheels. and another thing, I pulled a stump out of the ground about 2 feet in diameter with no problem.
 

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I have a stock 2003 Grizzly and would like to gain some additional horse power. Does anyone have any ideas for someone with limited mechanical abilities? Some things I have hear are: dial a jet; new pipe, billet exhaust tip, pro flow kit, k+n filter, TPI valves. Any help would be appreciated.
 

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Discussion Starter #10
Went to my dealership too, and they said 42 horses.
guess you were right gumbo.
 
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