BBK 1988-1995 GM TRUCK 4.3/5.0/5.7L 3PC UNDER DRIVE PULLEY KIT (ALUMINUM) 1603

BBK 1988-1995 GM TRUCK 4.3/5.0/5.7L 3PC UNDER DRIVE PULLEY KIT (ALUMINUM) 1603 is a BBK Performance Parts upgrade built for enthusiasts who want proven fitment, dependable construction, and real performance value without guessing on parts compatibility.

This engine under drive pulley kit is designed for serious street, muscle car, and performance applications where airflow, exhaust flow, throttle response, and durability matter. Use the fitment notes below before ordering.

Key Features

• 6 Rib
• 91.5"
• Brand: BBK Performance Parts
• Part Number: 1603

Vehicle Fitment

Universal Fit – Custom Installation May Be Required

Emissions & Compliance

This product may affect emissions-related systems. Check local regulations before installation.

Installation Notes

Professional installation is recommended. Confirm clearance, engine configuration, and related hardware before installation.