[416 or 426] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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416 or 426
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Posted by: superevil

Well i got my top end off on the way to my bad 2nd gear. And my sleave measures 85.86 mm from front to back and 85.75 from side to side.
So i guess it needs a bore/piston rings. Should i go with a 416 or a 426?

Posted by: GOTFEAR

426 real good all around power with no other mods

Posted by: honda300EXtreme

a well built 416 can produce good power... and it saves you the money of a new sleeve and everything else,,,

so in my opinion bore it out to a 416, then spend some money on a good cam, and if budget allows get some port and flow work done

Posted by: superevil

Im going with a 416. I already have a hotcam stage 2 and an hmf pipe.I was really happy with the power before,so i can imagine with a 416 and a good bore ill be extra happy

Posted by: superevil

whats the highest compression ratio i can go on pump gas

Posted by: honda300EXtreme

11:1 is the highest you can go on pump gas