Showing 929–944 of 1095 results
Completely Assembled EGR Style Cylinder Head with 64mm Valves for 50cc 4-stroke QMB139 engines. * EGR Style Cylinder Head * 47mm Bore * Valve Length: 64mm * Overall Height: 59.5mm * Intake Port Diameter: 17mm * Exhaust Port Diameter: 18mm * Exhaust Bolt Hole Spacing: 49.75mm * Intake Bolt Hole Spacing: 44.75mm * Please see picture for measurements
Completely Assembled non-EGR Style Cylinder Head with 69mm Valves for 50cc 4-stroke QMB139 engines. * non-EGR Style Cylinder Head * 47mm Bore * Valve Length: 69mm * Overall Height: 59.5mm * Intake Port Diameter: 17mm * Exhaust Port Diameter: 18mm * Exhaust Bolt Hole Spacing: 49.75mm * Intake Bolt Hole Spacing: 44.75mm * Please see picture for measurements