13.5
divide the cc by 15 to get the horsepower.
There isn't a formula for equating horsepower to displacement. That'll be determined by the injectors, the displacement, stroke, and compression of the pistons, and other factors.
Roughly 16.5 HP
14 hp in 420cc you take 420cc devide by 30 = 14hp
17.5
340 Horsepower 340 Horsepower
1001 horsepower
160 horsepower
43 horsepower
170 horsepower
The 2009 Grizzly is available in several different horsepower configurations. The standard horsepower is 225. There were options for as much as 360 horsepower.