183-8173: 50mm Long Groove End Guide Pin
183-8174: HEAD AS-CYL
183-8809: 48mm Steel Alloy Casted Intake V Seat Insert
185-0885: Gasket-Head
185-4461: Support Assembly
185-8991: HEAD AS-CYL
186-2001: 29.39mm Head Diameter Cylinder Head Rotocoil
186-8581: HEAD-XMSN
186-9186: HEAD-TILT CY
187-1315: 1.96mm Thick Cylinder Head Gasket
187-2112: HEAD GP-CYL
187-3307: 1.98mm Thick Cylinder Head Gasket