79-93 alum 3 pc pulley setPulley Set, Serpentine, Aluminum, Polished, Ford, Small Block, Windsor, Each
BBK Performance underdrive pulley kits are built from aircraft-quality, computer-machined steel or aluminum alloy. By reducing the speed of the accessories, these underdrive pulleys free up an average of 8-15 HP while retaining full cooling and charging characteristics. Most kits can be bolted on in less than 30 minutes.