Complete Big Bore Kit MYK 80cc for 50cc 4 Stroke Chinese Scooters
Code: MYKH0074
- 47mm cylinder upgrade kit for up to 80cc
- Includes assembled cylinder head with 70mm valve length
- Includes 47mm piston set with rings and wrist pin
- Includes rocker arm assembly, exhaust studs, factory style nuts, and spark plug
- Free blocking plates included
- Intended for off-road, non-street, or closed-course racing use only
MYK Upgrade Kit 47mm cylinder , up to 80cc (Cylinder Kit + Cylinder Head 70mm valves + Camshaft + rocker arm kit)
Works on most 50/80cc GY6/QMB Chinese engines.
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