Satin Aluminum Pulley Set Big Block Chevy Double Groove Short Water Pump
- Satin Aluminum Crankshaft and Water Pump Pulley.
- Fits Big Block Chevy 396-454 Engine.
- Fits 1965-68 Short Water Pump.
- Double Groove.
- 6.60" Diameter.
- Crankshaft Pulley have 1.75" Bolt Circle.
- Water Pump Pulley have 2.3" Bolt Circle.
To determine if your water pump is short or long.
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.
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