BBK Under Drive Pulley Kit 6 Rib Serpentine Aluminum Polished - Small Block Ford Tape Measure 25 ft Roll

25 ft Roll

Have problems installing freeze plugs

For reducing cranks with 1/4" keyway to 3/16"

82-93 TH700R4

Brackets are a two-piece design that clamps our 2" O

BBK Under Drive Pulley Kit 6 Rib Serpentine Aluminum Polished - Small Block Ford Tape Measure 25 ft RollInstall 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