Valve Spring: Description and Operation

Each exhaust and intake valve has a valve spring of ample capacity in order to insure positive seating throughout the operating speed range. The valve rocker arms for each bank of the cylinders, pivot on pedestals bolted to the cylinder head. Hydraulic roller valve lifters and tubular push rods are used to operate overhead rocker arms and valves of both banks of the cylinders from a single camshaft. This system requires no lash adjustment at the time of assembly or in service.