Crankshaft Pulley V-Belt 1-Groove 5.25 In. Aluminium Natural Chevrolet Big Block Short Pump (each)
Product Information
Moroso cast aluminum crankshaft pulleys have a small diameter that slows fan, water pump, and alternator speeds to reduce horsepower-robbing drag. They also have extra-deep grooves to provide added belt retention during rapid changes in engine rpm. They are precision-machined from high-grade, lightweight, aluminum castings.

Product Information
Moroso cast aluminum crankshaft pulleys have a small diameter that slows fan, water pump, and alternator speeds to reduce horsepower-robbing drag. They also have extra-deep grooves to provide added belt retention during rapid changes in engine rpm. They are precision-machined from high-grade, lightweight, aluminum castings.