80cc Big Bore Kit with 64mm Valve Head Assembly
Need Faster acceleration, and more top speed to keep up with the flow. Then our Big Bore Kits are the way to go.
For scooters with 139QMB or 139QMI engines Scooter
Before ordering check your head assembly for the correct valve length. See the 2nd and 3rd listing images.
If you need a different BIG BORE KIT click link below:
64mm Head 80cc Big Bore Kit w eBay Item# 291567626384
69mm Head 80cc Big Bore Kit w eBay Item# 271616884375
64mm Head 100cc Big Bore Kit w eBay Item# 281816759859
69mm Head 100cc Big Bore Kit w eBay Item# 271116277724
Specs:
- Intake Valve Diameter: 18mm
- Exhaust Valve Diameter: 16mm
- Head Assembly with 64mm Valves
- 80cc Cylinder Diameter: 47mm
Includes:
- Head Assembly with 64mm Valves
- Cylinder
- Piston
- Ring Set
- Wrist Pin
- Cirq Clips
- Head and Base Gaskets
ALL PRODUCTS SHIP FROM THE US
ALL QUESTIONS RESPONDED TO WITHIN 24 HOURS .
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