"Ford 302W 351W CVF Racing Billet Lower Pulley Suit L/H Water Pump # B-SBFL1CR Stealth Black Billet Aluminum Ford Small Block Crankshaft V-Belt Pulley (4 Bolt) 1 Groove Crankshaft Pulley for 302, 351W, 351C or 351M. APPLICATIONS: 1969 1/2+ Ford289, 302 351W passenger cars 1977+ Ford trucks All Ford 351 Cleveland Engines (351C) All Ford 351 Modified Engines (351M) All Ford 400 V8 Engines FITS VEHICLES WITH: Factory 4 bolt damper (Aftermarket dampers may require 0.950" spacer) Water Pump with Driver's side lower radiator hose. Dampener face to water pump flange face 3 1/4"