Universal Parts Head 50mm QMB139 Big Bore Head with 69mm Length Valves GY6 49cc > Part #169GRS70-69
Please note: replaces Cylinder Heads with 69mm Valves (Long Valve Style). Goes with Part #151GRS258 or 169GRS54 for use of 69mm Valve Set Up.
Supported Models: Bintelli, Tao Tao, Peace Sports, Wolf, Schwinn, Puma, SYM, Alliance, Motorino and Kymco.
- Intake Valve Diameter: 21.5mm
- Intake Port Diameter: 24mm
- Exhaust Valve Diameter: 18.9mm
- Exhaust Port Diameter: 22mm
- Valve Length: 69mm (compatible with 69mm Short Valve Style Heads)
- Does not come with camshaft, please see Related Items
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