Loncin 250 cc 4T ATV Cylinder Head
Product code: PITD1870
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Loncin 250 cc 4T ATV Cylinder Head
Complete cylinder head for Loncin 250 cc four-stroke engines used in Cross-type quad bikes. Suitable as a replacement part for an engine overhaul or to replace a damaged cylinder head.
Technical specifications
Combustion chamber and ports:
- Combustion chamber diameter: 66 mm
- Inlet port diameter: 26 mm, hole spacing 62 mm, M6 thread
- Exhaust port diameter: 40 mm, hole spacing 58 mm, M8 thread
- Camshaft length: 92.3 mm
- Spark plug thread: M12 × 1.25
Inlet valve:
- Length: 90 mm
- Head diameter: 32 mm
- Stem diameter: 5.5 mm
Exhaust valve:
- Length: 89.2 mm
- Head diameter: 27 mm
- Stem diameter: 5.5 mm
Please check that the specifications match your engine before ordering.
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