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Pulley, Crankshaft, 1 Groove, Long Water Pump, Chevy, Small Block, Each

Trans-Dapt Performance steel crankshaft pulleys increase horsepower and reduce accessory drag. They are available in your choice of two finishes. Since Chevrolet has made a variety of pulley diameters, Trans-Dapt has chosen the most popular diameters for their pulleys. In some instances, the stock accessories may not run at the same speed as originally designed.