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

Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions. Requires the use of a NEW Serpentine Belt - 6 Rib - 91.5" Lightweight CNC Billet Aluminum Construction - Bolt On 8-15 Horsepower in Less than an Hour -Retains Proper Cooling and Charging Attributes: Brand Name: BBK Performance Parts GTIN: 00197975016034 Belt Included: No Fitment: Direct Replacement Grade Type: Performance Included: Includes: Crank, Water Pump And Alternator Pulleys (3) Notes: Requires New Belt - 6 Rib Approx. 91.5 inches Pulley Color: CNC Machined - Natural Pulley Material: Billet Aluminum Pulley Measurements: Approx. Crank - 5.90" Water Pump - 5.98" Alternator - 2.96" Extended Information: Country of Origin: US Emissions : Emissions Compliance Exempt Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 5 x 7 x 7 inches Weight: 4 lb PDF: