ATI Super Damper Standard Harmonic Balancers ATI918923

Patented ATI Super Damper standard harmonic balancers are the only crankshaft dampers designed exclusively for high performance engines. Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. The inertia weights have six (2-ring design) or eight (3-ring design) computer-machined grooves to retain the proper durometer O-rings (dyno tested for each application). Whether you race or just drive on the street, ATI harmonic balancers are the perfect choice.

Features include:

* Eliminates torsional crankshaft vibrations
* Exceeds SFI 18.1 specs
* Black zinc chromate finished
* OEM equipment on a variety of crate engines
* Tunable, rebuildable, and extremely efficient at all rpm
* Laser-engraved 360 degree timing marks
* Supercharger and power steering drive pulleys available for some applications
Brand: ATI Performance Products
Manufacturer's Part Number: ATI918923
Part Type: Harmonic Balancers
Product Line: ATI Super Damper Standard Harmonic Balancers
HP Direct Part Number: ATI-918923
UPC: 800157029158
Engine Balance: Internal
SFI Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in.): 6.325
Crankshaft Pulley Bolt Hole Quantity: Four
Keyway Quantity: One
Harmonic Balancer Material: Aluminum/Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Color: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Designed for custom internal balanced build applications only. Three ring design, weight is 3.90 lbs.
Special Attention: 3.35 in. C timing tab location.