SSP-G GY6 67mm 4V Cylinder Head 58.4mm 150 and 170i scooters and

150 and 170i scooters and 125/150cc GY6 bikes

139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA Other QMB

CB455 Kawasaki KZ400

it will fit on some Vespa 50's

Tire Type: Tubeless (Can be used with tubes if required)

SSP-G GY6 67mm 4V Cylinder Head 58.4mm 150 and 170i scooters andSSP G GY6 67mm (232cc) 4V Cygnus style cylinder head for B case GY6 4 stroke engines. Head includes cam, roller rockers, anodized head and cam covers, timing sprocket, studs and nuts. Exhaust Valve Diameter: 23mm Intake Valve Diameter: 25mm Exhaust Port Diameter: 27mm Intake Port Diameter: 30mm Overall Height: 144mm Fits B Case Engines with 57mm Stud Spacing Only Requires 96L Cam Chain (Not Included) Intake valve lash: 0. 10mm Exhaust valve lash: 0.