Small Block Chevy Black Steel Crankshaft Lower Pulley
- Black Steel Pulley.
- Fits Small Block Chevy 283-350 Engine.
- Fits 1969-85 Long Water Pump.
- Double Groove.
- 6.90 Diameter with 2.30 Bolt Circle.
If your alternator is originally on the driver's side then it is a short water pump.
If your alternator is orginally on the passenger's side then it is a long waterpump.
If you can fit your hand between the waterpump and the timing chain cover then you have a long waterpump.
