ATI SFI 18.1 Supercharged Super Damper - 7.425 in OD - Black Oxide - Internal Balance - GM LS-Series AA0700AF1T60 Water Repellent

Water Repellent

0-4779S (4V heads) Installation: If using an automatic transmission

1967-1974 Pontiac Firebird

Frankland Originals must use a single row pinion support bearing (QC0170) for clearance purposes

Full Displaced Valve System Inspired From Off-Road Racing

ATI SFI 18.1 Supercharged Super Damper - 7.425 in OD - Black Oxide - Internal Balance - GM LS-Series AA0700AF1T60 Water RepellentThe patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines. 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. Product Description: Harmonic