ATI 3GTDR-009 Camaro/Silverado 8 Rib 8.25 Crank Pulley for use with ATI Balancer

ATI 3GTDR-009  Camaro/Silverado 8 Rib 8.25 Crank Pulley for use with ATI Balancer

This also is used on the 8 rib GM dedicated truck kits.

ATI Performance Products 918635 harmonic balancer (Not Included) is to be used with this crank pulley.

Includes the following items:

The larger the crank pulley, the more boost the blower will make. The smaller the blower pulley, the more boost the blower will make. Small blower pulleys can cause the blower belt to slip as they don't have as much surface area (ex o/O). It's better to go with the larger crank pulley so you don't have to drop down to a small blower pulley.