Honda makes more than one type 160cc engine. The GC160 horizontal shaft outputs 5 h.p. The vertical shaft engine outputs 4.8 h.p.
six
6 hp Kawasaki engine
You are going to use it in a lawnmoer to race they are i think about 15 hp but if u want a fast lawnmower use a snowmobile engine
This engine will have some good horsepower. It will not be as strong as like a car but it comes pretty high for a lawnmower.
6 HP
106 H.P. A 106-horsepower 4-cylinder engine powered the CX, DX, and LX. The HX had a 115-horsepower engine. The EX had a 127-horsepower engine.
A 2005 Honda Civic Si was one of the first Honda Models to use a K series engine. This engine produced 160 horsepower and just over 130 pounds of torque.
5hp @ 3600 rpm, according to trupower.com
240HP Asian Version
It has 68 horsepower
it has 21 horsepower
83 horsepower