ATI LS Harmonic Balancer 5.67 25% UD GM Y-Body RS007B0113W The shocks are owner rebuildable

The shocks are owner rebuildable

Completely external seam construction reducing pressure points and abrasion

3/5 rated with SFI tags affixed at the wrist

25" x 25" x 10"

Provides maximum possible spark advance while preventing damaging detonation or ''ping''

ATI LS Harmonic Balancer 5.67 25% UD GM Y-Body RS007B0113W The shocks are owner rebuildableProduct Description: Harmonic Balancer Serpentine Super Damper 5. 67 in OD SFI 18. 1 Aluminum Steel Black Internal Balance GM LS Series Sold Individually ATI Performance Products is a company founded on innovation, precision and service. ATI harmonic Super Dampers add horsepower and torque to race, street and truck engines. ATI Performance Products is the creation of over 40 years of Transmission and performance component manufacturing and racing