KOSO Honda Grom/Monkey 4-Valve Cylinder Head Kit

was $749.95 Special Price $695.00
KOSO Honda Grom/Monkey 4V Cylinder Head Kit.

KOSO Honda Grom/Monkey 125 4 Valve Cylinder Head Kit with larger square intake and oversize exhaust port to accommodate the pair of 24mm intake and 21mm exhaust valves. The Koso Grom/Monkey 4 Valve Cylinder Head Kit is designed to be added to an existing Koso Grom 61mm Big Bore Cylinder Kit.  This 4 Valve Head will only work with KOSO 61mm Grom/Monkey Big Bore Kit.  

Koso Honda Grom 125 4V Cylinder Head Kit

  • Koso 4-valve Cylinder Head 
  • Intake Valve 24mm
  • Exhaust Valve 21mm
  • Roller Rocker 
  • Koso Camshaft
  • Koso 61mm Forged Piston for 4 Valve 
  • Koso Large Port Exhaust Gasket 
  • Koso Intake Manifold for large throttle body (34mm not included)
More Information
SKUMC623000
BrandKOSO
VehicleHonda Grom, Honda Monkey
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