The fuel injector rocker arm assembly is located between the intake and exhaust rocker arm assemblies and has a single bushing (not serviced separately). A rocker arm shaft carries three sets of rocker arm assemblies and is mounted in seats machined into the camshaft bearing caps.
| 1. Unitized Valve Adjusting Screw Assembly; Intake position | 5. Rocker Arm Shaft |
| 2. Locknut | 6. Unitized Valve Adjusting Screw Assembly; Exhaust position |
| 3. Intake Rocker Arm Assembly | 7. Exhaust Rocker Arm Assembly |
| 4. Fuel Injector Rocker Arm Assembly | 8. Unitized Valve Adjusting Screw Assembly; Injector position |
