Chevy Steel Dampers
Hubs for these assemblies have a 2.280'' counterbore. A standard length crank bolt is used and the mandrel bolts to the 3 pulley mounting holes. This eliminates the 4''-6'' long bolt that is ineffective in retaining torque. Adapter part number 085-916321 is available for existing mandrels with 1.245'' pilot.
Performance-Oriented Harmonic Dampers
ATI's patented Super Damper is the only harmonic balancer developed exclusively for high-RPM performance engines (6000+ RPM). They have been tested in Winston Cup competition over two million cycles and in drag racing engines for ten years (exceeds SFI 18.1 specs). Inner and outer shells are aluminum or steel to contain the steel inertia weight which has eight computer-machined grooves to retain the proper durometer O-rings. Each comes in a black zinc chromate finish with computer-controlled, laser-engraved 360-degree timing marks.
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.