Big Bore Kit Includes:
Cylinder Head Assy with 69mm Valves (Already Installed)
80cc 47mm Cylinder Block
80cc 47mm Piston Set (Piston,Piston Rings,Piston Pin,Piston Pin Clips)
Valve Oil Seals
Gasket Set (Head and Base Gaskets ,Tensioner Gasket ,Exhaust Gasket)
Studs Set (Intake Studs, Exhaust Studs,Exhaust Nut )
You will also get an extra BACKUP Kit include the gasket set and stud set.