New DLC (Diamond-Like Carbon) coated flat tappet lifter that produces an extremely hard; Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quality. Edelbrock core products are engineered manufactured and tested in the USA to ensure the best quality possible. This is further backed by some of the best warranties in the industry and a highly qualified technical support staff.; tough; and slick face that reduces friction at the cam lobe.; Virtually eliminates the need for a traditional break-in procedure associated with cast iron camshafts and flat tappet lifters.; Maintains the excellent hydraulic performance that the High Energy Hydraulic Lifters have provided for many years.