Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Small Block Chevy Electric Water Pump

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Overall Length:
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Powder Coated
Inlet Size:
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Clearance from back of pump to engine block mount is 1.56"
Small Block Chevy Electric Water Pump

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Q & A

What's in the Box

Small Block Chevy 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.

  • Joints feature “O” ring gaskets for a perfect seal
  • Black powdercoat finish
  • Includes mounting hardware and wiring pig tail
  • Lenth of aluminum inlet 3.75" (1.00" of which is threaded 3/4")
  • Outlet holes: 1.00" ID
  • Block mount center to center: 1.80"
  • From pump bottom to mounting surface: 1.50"
  • From top of outlet shoulder to mounting surface: 3.5"
  • Diameter of the pump: 4.00"
  • Lenth outside to outside shoulders: 10.00"
  • 10.00" of wiring off the pump, 5.00" off pigtail

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump.  

You may also be interested in:

Speedway Adjustable Small Block Chevy Aluminum Short Water Pump
(Part #91015582)

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.

  • Adjustable mounting holes
  • High flow and pressure rates
  • Adjustable cam stop
  • Extra-thick fan hub
  • 3/4" inch heavy duty bearing
  • Pressed-fit and set-screw-retained fan hub
  • Large-diameter shaft and reinforced housing make it ideal for oval-track applications

910-15582 Instructions (PDF)

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump

Stewart Components 32203 Stage 3 Small Block Chevy Water Pump, Short
(Part #91015540)

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 holes for external cooling lines on S/B Chevy. 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. Precision impeller installed to exacting tolerances. One year manufacturers warranty.

910-155 Instructions (PDF)

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump.



Moroso 63500 Small Block Chevy Aluminum Short Water Pump
(Part #54563500)

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.

  • Computer designed housing cast from 356-T6 aluminum
  • Lightweight impeller maintains consistent coolant temp throughout the water jacket
  • Low-drag impeller adds 14HP @ 7,500 RPM 
  • Includes integral cam stop boss
  • Overall length of 5.603" from rear mounting face to hub face  

Fits 1955-1968 “Short” design 5/8" shaft S/B Chevy appliactions. Note: Pump will not clear a billet 910-11040 timing cover.

545-63500 Instructions (PDF)

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump.    

Modular Electric Water Pump
(Part #911880)

Our newest high volume electric water pump has been machined from billet aluminum and the fit & finish is excellent. This pump is durable and light weight, but is still able to cycle up to 35 gallons of coolant per minute! Electric water pumps reduce impeller drag experienced with mechanical water pumps at high rpms and are recommended for high performance racing applications.

  • Includes all required seals, fittings and hardware (when adapters and pump are combined)
  • Precision machined billet aluminum housing
  • Light weight
  • 35 gpm rating
  • Eliminates impeller drag found in mechanical water pumps
  • Black anodized finish on motor, all other parts polished

Note: For complete assembly, simply select the Small Block Chevy adapters(911885) or the Big Block Chevy, Small Block Ford or the Big Block Ford adapters listed below that your application requires and the pump body.

Modular Electric Water Pump Adapters for Small Block Chevy
(Part #911885)

Check out our adapters for our newest Small Block Chevy high volume electric water pump. These engine water pump adapters are machined from billet aluminum and the fit & finish is excellent. 

  • Aluminum
  • Polished
  • Sold as a Pair
  • Designed to work with our modular electric water pump housing (911880)