T&D Machine Products Shaft Roller Rocker Arm Systems

T&D's extruded 2024 aluminum rocker armsa are CNC-machined and have intricate oil galleries built in to direct oil from the pushrod to the shaft bearings and onto the roller tip. Adjuster screws are 7/16" and broached for a 3/16" socket to eliminate twisted allen wrenches. Deep, case hardened 8620 steel shafts are tempered for strength. Optional .040" spring oiler holes spray directly onto the valves for extended spring life. Available by special order only. Specify engine, cylinder head type, rocker arm ratio and offsets (if applicable) when ordering.