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The BBK underdrive crank pulley kit for 1993–1997 GM LT1 Camaro/Firebird is a CNC-machined billet aluminum crank pulley designed as a piggyback for the factory harmonic damper. It’s a direct bolt-on that maintains full cooling and charging performance while reducing accessory draw. Installed with supplied hardware and instructions, the kit can free up an average of 8–12 horsepower and is a quick straightforward upgrade for LT1 applications.
BBK 93-97 Camaro Firebird LT1 Underdrive Pulley Kit - Aluminum
