Applications - Oldsmobile V8 260-455
Pontiac V8 265-455. Specs - .842" diameter
97g weight
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 Met al iron alloy that is heat-treated for strength and wear resistance.