ATI Serpentine SFI 18.1 Super Damper - 7.425 in OD - AC Pulley - Black Oxide - Internal Balance - GM LS-Series 23011813 this raised one-piece guide plate

this raised one-piece guide plate set is designed for Chevrolet 396-454 Big Block engines with 7/16" studs and 3/8" pushrods

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170lb/in Spring Rate Front

Five Star Race Car Bodies is the most recognized brand of short track body components in the world

ATI Serpentine SFI 18.1 Super Damper - 7.425 in OD - AC Pulley - Black Oxide - Internal Balance - GM LS-Series 23011813 this raised one-piece guide plateThe 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