These under-drive accessory pulley kits are one of the easiest ways to free up horsepower and they look great under the hood. Made from aircraft quality polished aluminum alloy. Designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. Each BBK under drive pulley kit is vehicle specific. Comes with complete installation instructions and allow the use of existing serpentine belts.
Fits 86-93 5.0 EFI motors - (Reverse Rotation Serpentine System)