1. HEAD ASS'Y, CYLINDER 1220A-BA1-R300
2. HEAD COMP., CYLINDER 12200-BA1-R300
3. SEAT, IN.VALVE 12202-BA1-0000-H1
4. SEAT, EX.VALVE 12203-BA1-0000-H1
5. GUIDE, VALVE 12204-SA1-0000-H1
