KOSO NORTH AMERICA Four Valve Head Kit - Honda Grom/Monkey MC623000

Four Valve Head Kit - Honda Grom/Monkey
Ideal engine part to complete Koso's big bore kit, Unique four-valve design increases air flow and performance, Provides more power and torque, Features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves, Proper exhaust system must be used to prevent re-flow pressure and heat.