Crankshaft Pulley, Cast, single groove, 50% reduction, SBC, long water pump
Features- Fits: SBC, 1969-later (with long 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
- Type:
- Crankshaft
- Style:
- V-belt
- Groove Quantity:
- 1
- Underdrive:
- 50%
- Water Pump Style:
- Long
- Finish:
- Natural
- Material:
- Aluminum
- Outside Diameter (in.):
- 4.000 in.
- Hardware Included:
- No
- Bolt Hole Quantity:
- 3
- Quantity:
- Sold individually.
- Notes:
- Requires 36 degree x 17/32 inch wide belt.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen I
- Engine Sizes:
- 6.3L/383-6.6L/400
- Years:
- 1969-1985
