ATI Super Damper Serpentine Series harmonic balancers are patented and feature grooves for serpentine belts machined into the outer damper shell. The dampers come with six outer grooves for the standard OEM drive systems on your Pontiac GTO. The Serpentine Series Super Dampers fit all ATI GM-front crank hubs and can be adapted to many engine combinations, providing maximum flexibility. This Balancer is Aluminum construction.
Features and benefits:
* Eliminates torsional crankshaft vibrations
* Exceeds SFI 18.1 specs
* Black zinc chromate finished
* Tunable, rebuildable, and extremely efficient at all rpms
* Laser-engraved 360 degree timing marks
Engine Balance: Internal
SFI Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in): 6.780 in.
Groove Quantity: 6
Keyway Quantity: One
Harmonic Balancer Material: Aluminum
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: 10 percent underdrive without air conditioning pulley. 40 durometer rubber, not intended for full race engines.
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