BBK 1985-1997 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum - 3pc -

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 and allow the re-use of existing serpentine belts. Installation Instructions Warranty Installation Instructions This Part Fits: Year Make Model Submodel 1987 Chevrolet Blazer Custom Deluxe 1987 Chevrolet Blazer Silverado 1985-1986 Chevrolet C10 Custom 1985-1986 Chevrolet C10 Scottsdale 1985-1986 Chevrolet C10 Silverado 1985-1986 Chevrolet C10 Suburban Custom 1985-1986 Chevrolet C10 Suburban Scottsdale 1985-1986 Chevrolet C10 Suburban Silverado 1985-1986 Chevrolet C20 Custom 1985-1986 Chevrolet C20 Scottsdale 1985-1986 Chevrolet C20 Silverado 1985-1986 Chevrolet C20 Suburban Custom 1985-1986 Chevrolet C20 Suburban Scottsdale 1985-1986 Chevrolet C20 Suburban Silverado 1985-1986 Chevrolet C30 Custom 1985-1986 Chevrolet C30 Scottsdale 1985-1986 Chevrolet C30 Silverado 1985-1986 Chevrolet Camaro Berlinetta 1985-1987 Chevrolet Camaro Iroc-Z 1987 Chevrolet Camaro LT 1985-1987 Chevrolet Camaro Sport 1985-1987 Chevrolet Camaro Z28 1986-1987 Chevrolet Caprice Base 1985-1987 Chevrolet Caprice Classic 1986-1987 Chevrolet Caprice Classic Brougham 1987 Chevrolet Caprice Classic LS Brougham 1985 Chevrolet Impala Base 1985-1986 Chevrolet K10 Custom 1985-1986 Chevrolet K10 Scottsdale 1985-1986 Chevrolet K10…