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Crankshaft Pulley, V-Belt, 3-Groove, Aluminum, Polished, Chevy, Big Block, Short Pump, Each

Trans-Dapt Performance aluminum crankshaft pulleys are manufactured from 356 aluminum alloy that is heat-treated to T-6 specs. These Trans-Dapt Performance aluminum crankshaft pulleys help to increase horsepower by reducing accessory drag.