ATI Serpentine SFI 18.1 Super Damper - 7.480 in OD - AC Pulley - Black - Internal Balance - GM LS-Series RS00100312 while the hardened swivel chuck

while the hardened swivel chuck rotates 360° for positive valve stem attachment

The block off plate is powder-coated black for a visually appealing finish

ferrous-target

Racepak Optimized for the racer who needs to view vital functions quickly and easily

ATI Serpentine SFI 18.1 Super Damper - 7.480 in OD - AC Pulley - Black - Internal Balance - GM LS-Series RS00100312 while the hardened swivel chuckThe 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