SKU: 27-5822
Product Type: Engine
$749.95
Stock : 4
The Koso 4V Head Kit is the ideal engine part to complete the Koso Honda Grom® Big Bore kit. Because of its unique 4 valve design, the air flow and performance are increased. This new designed head is the perfect addition for those who desire more power and torque.
Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available.
Requires the use of Iridium spark plug
The 4 Valve Head Kit features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves. Only fits Koso 170cc big bore kit.
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