ATI SFI 7.48 Harmonic Damper - 6-Groove - LS3 GBDXX3 Impact gun style punch places

Impact gun style punch places a 1/4" diameter hole 1/2" from the end of most 1" x

1971-1971 Ford Thunderbird

attach with 1/8" rivets

Waterproof

ATI SFI 7.48 Harmonic Damper - 6-Groove - LS3 GBDXX3 Impact gun style punch placesProduct Description: Harmonic Balancer Super Damper 7. 480 in OD SFI 18. 1 Steel Black Oxide 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 experience.