Holley 6-Rib Serpentine Pulley Kit - Black - GM GenV LT-Series SB180020 This kit includes 16 shims

This kit includes 16 shims per thickness measurement

Bottle Style

Contains an effective anti-foaming agent

3mm back cut rings with lateral gas ports for superior ring seal

1974-1974 Oldsmobile Cutlass

Holley 6-Rib Serpentine Pulley Kit - Black - GM GenV LT-Series SB180020 This kit includes 16 shimsHolley's Mid Mount complete accessory system has all accessories pulled in tighter than other accessory drives. At the heart of the system is a "bracketless" design, where the accessories bolt directly to the water pump for a clean, integrated form. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are bottom heater outlets for clearance in tight applications. The Holley