BBK 3 Piece Aluminum Pulley Kit - 97-03 Ford 4.6/5.4L H760C42XS Proven Results:

Proven Results:

1975-1987 Ford F-150

1975-1981 Plymouth Trailduster

7 User-Selectable Fuel Level Resistance Ranges To Pair With Original And Aftermarket Sending Units

58cc combustion chambers

BBK 3 Piece Aluminum Pulley Kit - 97-03 Ford 4.6/5.4L H760C42XS Proven Results: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