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Includes a heavy duty bearing and 3/4" shaft and pulley snout; and 1/2" NPT hole on the passenger side (for heater hose) and on the top (for by-pass hose). Thicker (0.100") stamped steel rear plate. Weighs 6 lbs.
These pumps are assembled with 356-T6 heat treated aluminum castings. Precision CNC machined components. The fan hubs are 1/2" thick and machined from billet steel. These pumps are preferred by many top engine builders for higher RPM applications.These Stage 3 water pumps feature 1/2" thick steel fan hub with set screw for positive positioning and 356-T6 heat treated aluminum casting. The S/B Chevy pump has an extra rigid cam stop with a 3/8" adjusting screw.The extra material adjacent to the block mounting bolts allows drilling and tapping up to 1/2" ...
These pumps are assembled with 356-T6 heat treated aluminum castings. Precision CNC machined components. The fan hubs are 1/2" thick and machined from billet steel. These pumps are preferred by many top engine builders for higher RPM applications.These stage 3 water pumps feature 1/2" thick steel fan hub with set screw for positive positioning and 356-T6 heat treated aluminum casting.The S/B Chevy pump has an extra rigid cam stop with a 3/8" adjusting screw.The extra material adjacent to the block mounting bolts allows drilling and tapping up to 1/2" NPT ...
Accents any small block Chevy installation. "Short" style (1955-1968) with 58" shaft and dual bolt pattern hub. 12" NPT ports at top and inlet side for heater hose hook-up. Inlet accepts 1-34" radiator hoses.
Swept vane technology in this water pump increases water flow for improved cooling. Used by the top teams and engine builders in the Sprint Car world.
These pumps are assembled with 356-T6 heat treated aluminum castings. Precision CNC machined components. The fan hubs are 1/2" thick and machined from billet steel. These pumps are preferred by many top engine builders for higher RPM applications.These stage 3 water pumps feature 1/2" thick steel fan hub with set screw for positive positioning and 356-T6 heat treated aluminum casting.There is higher flow and pressure for better cooling as well as equal flow to right and left cylinder heads. The 3/4" bearings offer 5 times the strength of standard bearings. ...
Moroso first pioneered the aluminum water pump for racing over 15 years ago. Over the years, continual improvements have resulted in providing the best cooling system components available for competition use.
91032904Overall Thickness0.500" (1/2")Material TypeAluminumFinishAnodizedSold in QuantityEachNotesWhen using this w/ a 910-32906 pump, you may have to drill out the mounting hole for the 5/16" mounting bolt to work. Only works on the saginaw style pumps (has 80mm bolt pattern)
466-30069 Dimensions(PDF)
Speedway Short Aluminum water pumps flow 35 gallons per minute at 4,000 RPM, with minimal cavitation and proportionally increased flow rates at 5,000 RPM and above. Equalized water flow distribution and pressure-balanced water passages minimize internal engine hot-spots making these pumps an excellent alternative for not only light duty racing, but also marine, trucks, towing, and motorhome applications. Cruisers and hot rodders will appreciate the improved cooling at low speeds.
"Short" style pumps came on all factory small block V8s from 1955 to 1968. However, this pump will fit all S/B Chevys up to 1985.
Speedway's completely new water pumps feature severe-duty roller and ball bearings, close tolerances and modular impellers to provide maximum flow and reduce cavitation. They also have modern ceramic seals on a heavy duty 3/4" shaft, making the assembly exceptionally strong and more efficient. Gaskets included.
If you are spending the money to build a 348 or 409 Chevy engine you had just as well put a high performance aluminum water pump on it. Choose plain or polished.
910-15581 Instructions (PDF)
Electric Racing Water Pumps feature a specially machined housing to maximize flow. The lightweight aluminum assembly is flow-rated at 35+ gallons per minute and weighs less than 6 lbs. Pump draws 6-7 amps.
Our B/B Chevy water pumps feature a CNC machined iron impeller, ribbed aluminum housing, and a heavy duty bearing assembly. These mechanical pumps flow up to 35% more coolant than stock pumps. Plus, thesealuminum pumps weigh less than half than the stock pump and require less power to operate.
Lightweight aluminum long style pump for S/B Chevy.Has provisions for your power steering mount.
This aluminum water pump saves weight and improves cooling. Helps minimize engine hot spots at any speed. Fits '70-'73 429 c.i. V8 and '72-'92 460 c.i. V8.
Speedway's adjustable water pump is tried, tested and true. It has great flow, superior quality and standard features that are typically only available on water pumps costing twice as much. State-of-the-art aluminum casting and a precision impeller provide equal flow to both cylinder banks. If you're using a cog belt on your race car, this is the pump you want since it's adjustable. The 1/2" mount holes in this pump are larger than normal, allowing it to be moved up or down slightly to help with belt tension.
Water pump pulley shim kit provides proper drive belt alignment with pulleys. Kit contains two aluminum 1/16" spacer and one 1/8" spacer.