Description
Cast Aluminum Crankshaft Pulley; 351-400 Cleveland Ford/Boss 302/All 4 Bolt Dia.; 4.00 in. OD; Double Groove; • Precision machined from high grade, lightweight aluminum castings
• Extra-deep belt grooves provide added belt retention during rapid changes in engine RPM
• Small pulley diameter slows fan, water pump, and alternator speed to reduce horsepower-robbing drag
• High RPM water pump operation is improved, reducing impeller speed below cavitation threshold
• Uses 36° x 17/32" wide belt