Chevrolet Big Block Short Stage 4 Water Pump For Chevrolet 1971-1974 Corvette. 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. Features: Chevrolet Big Block - Short 5.750" Length 3/4" Bearing 3/4" Shaft Racing Application Special Severe Duty Pump High Flow Pump Cast Aluminum Finish 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 Two 1/2" NPT auxiliary inlets
More flow than any pump available More pressure than competing pumps Less horsepower consumption
Precision ground steel billet fan hub with dual bolt pattern for perfect pulley alignment Fan hub set screw for positive positioningStewart Stage 3 Water Pump BB Chevy - Short 41203 at low everyday prices. Be sure to check out all of our products from Stewart Components including Stewart Components Big Block Chevy Water Pumps.