ATI BBC 7.074 Harmonic Damper - SFI 1443A24 The ZK-40 was designed for

The ZK-40 was designed for use in races where a CIK-FIA approval was not required

16 in Tall

Does NOT fit vehicles equipped with mechanical fan

Black oxide finish protects from wear and corrosion

0 m/s on the 54cm to 59cm size

ATI BBC 7.074 Harmonic Damper - SFI 1443A24 The ZK-40 was designed forProduct Description: Harmonic Balancer Super Damper 7. 074 in OD SFI 18. 1 Aluminum Steel Black Internal Balance Big Block Chevy 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.