Ford Small Block V Belt Pulley kit for 289 & 302 engines (3 bolt crank). This kit will for result in underdrive pulley ratio of 88%. Designed for use with stock alternator and power steering brackets. Fits vehicles with factory 3 bolt fluid dampener and passenger side lower radiator hose. Dampener face to water pump flange face 3 7/8"Designed for use with stock power steering and alternator brackets. Pulley Diameter: 5.4" with 3 Bolt pattern.