Exhaust valve rocker arm (Nut and screw are sold separately)
Intake manifold kit
Ring Set, 450-550 Series, 3, 3.75, 4 & 5 HP Horizontal/Vertical, Models 90000, 10A900, 130000
Cylinder head kit with new gasket and spark plug. New cylinder does not come threaded. Will need self tapping screws to thread.