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PULLEY, CRANK, BBC
Crankshaft Pulley, Cast, single groove, 25% reduction, BBC short water pump
- Fits: Chevrolet 396-454, pre1969 (with short water pump)
- 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