Cylinder kit with head WM – 80 cc 4T GY6 139QMA/QMB

Description

Complete 80 cc cylinder kit for 4-stroke GY6 139QMA/QMB engines. The set includes all essential components for a full engine rebuild or displacement upgrade. Made from high-quality materials, it ensures proper sealing, reliable operation and extended engine lifespan.

Set includes:
– Cylinder (Ø 47 mm)
– Cylinder head (complete)
– Gaskets (set)
– Camshaft support shafts
– Camshaft
– Rocker arms with base

Technical specifications:
– Cylinder bore: 47 mm
– Total cylinder height: 71 mm
– Cylinder height without sleeve: 53.4 mm
– Sleeve outer diameter: 53 mm
– Diagonal bolt hole spacing: 72 mm
– Piston pin: 13 mm
– Total head height: 59.5 mm
– Exhaust port hole spacing: 50 mm (M6)
– Spark plug thread: M10 × 1.0