ATI Super Damper Serpentine Series Harmonic Balancer Suit Holden Commodore LS2 L98 LS3 VE VF LS Chev With Air-con, 10% Underdrive

Part # 917278 [1,5,6]

6 Groove Front Pulley, 4 Groove Rear Pulley

• 6.78" OEM Diameter

• Aluminium Outer Shell

• SFI 18.1 Approved

[1] Requires shorter serpentine belt. Goodyear pt #4060785 for accessories & 4040405 for AC.

[5] Contains 40 durometer rubber. Not for full race engines. Specify 66 rubber or call.

[6] Damper assemblies have all countersunk bolts so nothing protrudes past front of damper. If you have an older damper and are ordering a new shell assembly only, you must cut a .090” x 45° chamfer on the front of your hub.

Super Damper^® Harmonic Dampers

The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines.

• Eliminates torsional crankshaft vibrations
• Exceeds SFI 18.1 specs
• Black zinc chromate finished
• Tunable, rebuildable, and extremely efficient at ALL RPM
• Laser engraved 360° timing marks

The ATI Serpentine Super Damper contains grooves for serpentine belts machined into the outer damper shell. The dampers come standard with 6 outer grooves for standard OEM drive systems. 8 & 10 grooves are available for supercharger or turbo applications. Serpentine dampers are available in a variety of diameters. Crank hubs may be fitted with a 6 groove serpentine pulley to drive external oil pumps or vehicle accessories.

The Serpentine Series dampers fit all ATI GM-front crank hubs and can be adapted to many engine combinations providing maximum flexibility. These dampers are available in steel or lightweight hard-coated aluminium and come with laser engraved 360° timing marks. Exceeds SFI 18.1 specs.

*photo for illustration purposes only