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50mm QMB139 Non-Emissions Head - 69mm Valves
50cc QMB139 4-stroke 50mm, Non Emissions Cylinder Head with 69mm Valves for use with 81.3cc Big Bore Kit! (See Related Items)
*You may need to modify your engine case to accommodate the larger cylinder.
- For Use With 81.3cc Big Bore Kit
- Valve Length: 69mm
- Overall Height: 59.5mm
- Intake Port Diameter: 18mm
- Exhaust Port Diameter: 17mm
- Intake Bolt Hole Spacing: 44.5mm
- Exhaust Bolt Hole Spacing: 50mm
50cc QMB139 4-stroke 50mm, Non Emissions Cylinder Head with 69mm Valves for use with 81.3cc Big Bore Kit! (See Related Items)
*You may need to modify your engine case to accommodate the larger cylinder.
- For Use With 81.3cc Big Bore Kit
- Valve Length: 69mm
- Overall Height: 59.5mm
- Intake Port Diameter: 18mm
- Exhaust Port Diameter: 17mm
- Intake Bolt Hole Spacing: 44.5mm
- Exhaust Bolt Hole Spacing: 50mm
$19.25
Original: $54.99
-65%50mm QMB139 Non-Emissions Head - 69mm Valves—
$54.99
$19.25Description
50cc QMB139 4-stroke 50mm, Non Emissions Cylinder Head with 69mm Valves for use with 81.3cc Big Bore Kit! (See Related Items)
*You may need to modify your engine case to accommodate the larger cylinder.
- For Use With 81.3cc Big Bore Kit
- Valve Length: 69mm
- Overall Height: 59.5mm
- Intake Port Diameter: 18mm
- Exhaust Port Diameter: 17mm
- Intake Bolt Hole Spacing: 44.5mm
- Exhaust Bolt Hole Spacing: 50mm
