All six-cylinder engines have been equipped with shaft-mounted rocker arm assemblies. The only V8 engines to include this type of valve assembly, however, are the 390, 427, and 428 cu in. engines.
Removal and installation procedures for the six-cylinder rocker shaft assemblies are included under the cylinder head removal and installation procedures for those engines. For the V8 engines, the rocker shaft removal and installation procedures are explained under the intake manifold removal and installation procedures for those engines.
In all cases, the correct torque sequence for the rocker shaft retaining bolts is from the front to the rear of the engine.