Feuling Lifter Cuffs For Harley Milwaukee Eight Feuling Lifter Cuffs replace weak stock components with added valvetrain stability for Milwaukee-Eight engines. They secure the lifters to prevent unwanted rotation and help keep the cam chest stable under high-rpm load. Molded from glass-filled nylon with Teflon for reduced friction and improved wear resistance, they also provide added clearance for performance cams up to .618 lift. Premium ARP hardware is included for installation. Features: Stock replacement Made from injection-molded, glass-filled Nylon with a Teflon additive to increase wear resistance and reduce friction Prevents lifter instability and twisting Increased clearances for larger lift camshafts Compatible with up to .618 lift camshafts without modifications Includes ARP fasteners and wedge lock washers Made in the USA