COMP Cams Hydraulic Lifter Oldsmobile/P

2.05" Seat Height. High Energyâ„¢ Hydraulic lifters have a patented constant orifice metering valve that precisely meters oil to the Rocker arms. Continuous contact between the metering valve and Pushrod seat is maintained, eliminating excessive oiling at high engine speeds. The Pushrod seat is made of a special powdered Metal iron alloy that is heat-treated for strength and wear resistance.