Pontiac; Super Duty; SD; SD455; HO; 455 HO; Trans-Am; Catalina; Firebird; Formula; 421; 455; 400; 428; 350; 265; 301; 370; 389; 301; 287; 317; 347; Ram Air; Ram Air IV; Ram Air III; Bonneville; Grand Prix; LeMans; Parisienne; Grand Am; Century; Regal;
With a patented orifice metering valve and a lightweight check valve disc these High Energy hydraulic flat lifters for Oldsmobile 260-455 and Pontiac 265-455 provide quicker response and better performance.
High Energy Hydraulic Lifters feature a patented metering valve that precisely meters oil to the rocker arms. Continuous contact between the metering valve & pushrod seat is maintained, eliminating excessive oiling at high engine speeds. Heat-treated pushrod seats are made of a powdered iron alloy for strength and wear resistance. These lifters have lightweight check valve discs for quicker response, which results in greater engine speed before valve float and added control at all speeds. For increased load bearing surface and longevity, the lifters pistons are longer than those of conventional hydraulic lifters.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.