4V Cylinder Head kit for Honda GROM®
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!
*Fit only Koso Big Bore kit.
|Gasket Thickness||Upper: 0.25mm
|Piston Compression Height||19.5mm|
|Cylinder Head Titration||13.4cc|
|Valve Clearance / Tappet Clearance||IN: 0.10mm
*Measured without Air Filter & no Noise Reduction Plug
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.