Super Damper Harmonic Balancer to suit Holden / Chevrolet / GM - LS1 and LS2

Part Number: 917242 or ATI917242

ATI's patented Super Damper is the only harmonic balancer developed exclusively for high-RPM performance engines (6000+ RPM). They feature a proven 2-in-1 elastomer design that bolts directly to the crank hub. ATI dampers are tested in Nascar competition settings and for over two million cycles in drag racing engines. Available in a steel shell material with a black zinc-chromate finish and with computer-controlled, laser-engraved 360-degree timing marks.

Key Features:

• Eliminates torsional crankshaft vibrations
• Exceeds SFI 18.1 specs
• Black zinc chromate finished
• Tuneable, rebuildable, and extremely efficient at ALL RPM
• Laser engraved 360° timing marks
• Suits LS1 and LS2 engines