The BBK Performance brand has been a leader in bolt-on performance upgrades for modern muscle cars and trucks since 1988. Founded by Brian & Ken Murphy, BBK was the first to design aftermarket air intake systems and performance throttle bodies for the fuel-injected 5.0L Mustang and TPI Camaro models. Today, BBK is the largest source of performance products for modern cars & trucks, with state-of-the-art facilities in California & Florida.\n\nThe BBK Power-Plus Series Underdrive Pulley System is a CNC machined billet aluminum 3-piece kit designed for 1988-1995 GM Truck 4.3, 5.0, 5.7 models. This kit includes crank, water pump, and alternator pulleys, along with all required hardware for installation. By installing a set of BBK Performance underdrive pulleys, you can gain approximately 8-10 horsepower without affecting cooling or charging of the vehicle.\n\nMade with premium quality lightweight billet aluminum, the BBK Underdrive Pulley Kit not only adds great looks but also improves performance. The direct replacement pulley kit reuses the existing serpentine belt, making installation simple and easy. BBK is proud to be an American designed and built brand, ensuring top-notch quality in every product. If you're looking to upgrade your performance while maintaining OEM quality & drivability, BBK is your number one aftermarket performance brand in the USA.
