- Our Koso 4V Cylinder Head kit for Honda GROM® 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. The 4 Valve Cylinder Head Kit features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves. Feel the speed!
- NOTE: Fits only the Koso 170cc Big Bore kit.
This item fits the following models:
Honda MSX125 Grom 2013 - 2021
Honda Z125 Monkey 2019 - 2020
Shipping weight: 8.27 lbs
Shipping size (L x W x H): 12.00 x 10.00 x 6.00 inches
Material: Stainless Steel
Type: Head Kit
UPC Code: 9409910030
Made in TW
Sold as: KT
This item fits the following vehicles:
2021 Honda MSX125 Grom
2020 Honda MSX125 Grom
2019 Honda MSX125 Grom
2018 Honda MSX125 Grom
2017 Honda MSX125 Grom
2016 Honda MSX125 Grom
2015 Honda MSX125 Grom
2014 Honda MSX125 Grom
2013 Honda MSX125 Grom
2020 Honda Z125 Monkey
2019 Honda Z125 Monkey
