Tool Steel Solid/Mechanical Flat Tappet Lifters< ul>< li> Extremely tough and strong, yet lighter in weight than standard Steel lifters< li> Wear resistance requires less power to run valve train and lowers friction, heat and oil temps< li> Three diameters available in DLC coated, non-coated and non-coated EDM versions Specifications Includes (16) lifters for Chrysler V8 Applications< li>.904" Diameter - 84g Weight - 1.88" Seat Height - .85" Oil Band Height - .58" Oil Band Width< li> For use on cast cams with or without nitriding< li>.012" oil hole