Naraku GY6 59mm Cylinder Head

Naraku GY6 Complete Cylinder Head for 160-180cc Big Bore GY6 4-stroke engines and engine based vehicles. Enlarged 59mm Combustion Chamber.

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• Exhaust Valve Diameter: 23mm
• Intake Valve Diameter: 27.75mm
• Exhaust Port Diameter: 26.5mm
• Intake Port Diameter: 27.5mm
• Overall Height: 61.75mm
• Stud Spacing: 76.7mm