Parts list: № Number Qty Name Options 1 R516516 14 Cap Screw 12.7 mm X 112 mm 2 RE507618 1 Cylinder Head (CYLINDER HEAD WITH INSERTS, INTAKE & EXHAUST VALVE, SPRING, SEAL & ROTATOR) 3 CD16284 1 Plug OD = 32.6 mm 4 R515090 1 Engine Cylinder Head Gasket Next page: ST665166 VALVE/VALVE SEAT/SPRING/ROTATOR ST665168 WATER TEMPERATURE SENSOR ST665169 CYLINDER BLOCK ST665173 CAMSHAFT WITH SPUR GEAR DRIVE ST665175 CRANKSHAFT / BEARINGS ST665162 Kit Rocker Arm And Shaft Assembly ST665160 Rocker Arm Shaft ST665158 VALVE COVER ST665156 BREATHER