Detach the valve cover from the cylinder head and, starting at the front, loosen the rocker arm bolts. Remove the cap screws, bridges, pivots, and rocker arms, storing them in marked containers to ensure they are reinstalled in their original locations. Take out the pushrods and store them separately to avoid mix-ups during installation, using a perforated cardboard box if multiple pushrods are removed, noting the label indicating the front of the engine. Inspect each rocker arm for wear, cracks, and damage, particularly at the contact points with the pushrods and valve stems, ensuring the hole at the pushrod end is clear. Check the pivot area of each rocker arm for wear, cracks, and galling; replace any worn or damaged rocker arms and pivots with new ones. Examine the pushrods for cracks and excessive wear at the ends, rolling each across a piece of plate glass to check for bending. Lubricate the lower ends of the pushrods with clean engine oil or moly-base grease and reinstall them in their original locations, ensuring each seats completely in the lifter socket. Apply moly-base grease to the ends of the valve stems and the upper ends of the pushrods before positioning the rocker arms and installing the cap screws. Set the rocker arms in place, then install the pivots, bridges, and cap screws, applying moly-base grease to the pivots to protect the mating surfaces before engine oil pressure builds up, and tighten the bolts to the specified torque. Finally, reinstall the valve cover and run the engine, checking for oil leaks and unusual valve train noises.