ATI Super Damper SFI-18.1 Harmonic Balancer - Undersized - 6.325 in OD - Internal Balance - Black - Small Block Chevy NG21 Unlike the previous 220

Unlike the previous 220

5 PSI maximum

consistent coil charging

19 in Tall

Crow Safety Gear has decades of experience manufacturing automotive racing safety equipment

ATI Super Damper SFI-18.1 Harmonic Balancer - Undersized - 6.325 in OD - Internal Balance - Black - Small Block Chevy NG21 Unlike the previous 220Product Description: Harmonic Balancer Super Damper Undersized 6. 325 in OD SFI 18. 1 Internal Balance Steel Black Paint Small 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