Innovators West 8-Rib Drive Conversion Kit w/10% Overdrive Balancer, Corvette LS7

8 Rib Drive Conversion Kit with 10% Overdrive Balancer for LS7 Corvette. Conversion Kit Includes: Crankshaft Balancer Power Steering Pulley Alternator Pulley Smooth Idler Pulley Ribbed Tensioner Pulley Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit. Any additional aftermarket pulleys must be sourced from the manufacturer of those pulleys. Includes SFI 18.1 10% Overdrive Harmonic Balancer.