High Energy 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. In addition, High Energy Lifters have a lightweight check valve disc that allows for quicker response, which results in increased engine speed before valve float. This check valve disc also maintains added control at all engine speeds and loads. COMP Cams High Energy Hydraulic Lifters also contain a longer piston than conventional Hydraulic lifters, which provides more load bearing surface and increases lifter longevity. PartNumber : cca820-12 Description : High Energy Hydraulic Lifters; 12 Pieces Title : 820-12 Hydraulic Lifters, Chrysler 6 Cylinder Seat Height : 1.88" Diameter : .904" Weight : 102g California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Engine Family : Chrysler 170-225 6 Cylinder (1980+) Lifter Diameter : 0.904 Lifter Series : High Energy Lifter Type : Hydraulic Flat Tappet Pushrod Seat Material : Powdered Metal Iron Alloy Seat Height : 1.88 Weight : 102 1981-1983 Chrysler Cordoba Base L6.3687cc Engine Components::Lifters 1981-1982 Chrysler Cordoba LS L6.3687cc Engine Components::Lifters 1983 Chrysler Fifth Avenue Base L6.3687cc Engine Components::Lifters 1981 Chrysler LeBaron Base L6.3687cc Engine Components::Lifters 1981 Chrysler LeBaron Medallion L6.3687cc Engine Components::Lifters 1981 Chrysler LeBaron Salon L6.3687cc Engine Components::Lifters 1981 Chrysler LeBaron Special L6.3687cc Engine Components::Lifters 1982 Chrysler New Yorker Base L6.3687cc Engine Components::Lifters 1981 Chrysler Newport Base L6.3687cc Engine Components::Lifters 1981 Chrysler Town & Country Base L6.3687cc Engine Components::Lifters 1981-1987 Dodge B150 Base L6.3687cc Engine Components::Lifters 1981-1987 Dodge B250 Base L6.3687cc Engine Components::Lifters 1986-1987 Dodge D100 Custom L6.3687cc Engine Components::Lifters 1981-1987 Dodge D150 Base L6.3687cc Engine Components::Lifters 1982-1983 Dodge D150 Miser L6.3687cc Engine Components::Lifters 1981-1987 Dodge D250 Base L6.3687cc Engine Components::Lifters 1981 Dodge Diplomat Base L6.3687cc Engine Components::Lifters 1981-1983 Dodge Diplomat Medallion L6.3687cc Engine Components::Lifters 1981-1983 Dodge Diplomat Salon L6.3687cc Engine Components::Lifters 1981 Dodge Diplomat Sport L6.3687cc Engine Components::Lifters 1981-1983 Dodge Mirada Special Coupe L6.3687cc Engine Components::Lifters 1981 Dodge St. Regis Base L6.3687cc Engine Components::Lifters 1986-1987 Dodge W100 Custom L6.3687cc Engine Components::Lifters 1981-1987 Dodge W150 Base L6.3687cc Engine Components::Lifters 1981-1983 Plymouth Gran Fury Base L6.3687cc Engine Components::Lifters 1981-1983 Plymouth PB150 Voyager L6.3687cc Engine Components::Lifters 1981-1983 Plymouth PB250 Voyager L6.3687cc Engine Components::Lifters