- 1970-78 and SVO Small Block
- 5.700" Length
- 3/4" Bearing
- 3/4" Shaft
- Special Severe Duty Pump
- CCW Rotation for Serpentine Belt
- High Flow Pump
- Cast Aluminum Finish
The Stage 4 Pumps incorporate the all new DRV-series 8 vane CNC machined 6061-T6 billet aluminum impellers. Developed by Stewart Components, these impellers flow up to 41% more water at twice the pressure than traditional designs... while consuming less horsepower.
These are premium water pumps and carry the following features:
- Models with 3/4" ball/roller bearings offer five times the strength of standard bearings
- Equal flow to left and right cylinder heads
- High flow and pressure 356-T6 heat treated aluminum specially ribbed casting
- Maximum flow close tolerance DRV-8 aluminum impeller
- Zinc-plated rear cover and bolts
- More flow than any pump available
- More pressure than competing pumps
- Less horsepower consumption
- Precision ground ½” steel billet fan hub with dual bolt pattern for perfect pulley alignment
- Fan hub set screw for positive positioning