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#91015580
Small Block Chevy Performance Aluminum Water Pump, Short
47 Reviews
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8 Questions
- State of the art T6 aluminum castings
- Features an impeller with curved vanes for maximum flow, pressure, and equal distribution to both sides of the block
- Unique seal assembly for leak proof operation
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Product Summary
Chevy Small Block V8, Mechanical Water Pump Type
- State of the art T6 aluminum castings
- Features an impeller with curved vanes for maximum flow, pressure, and equal distribution to both sides of the block
- Unique seal assembly for leak proof operation
- 3/4" ultra duty bearings with a 5/8" fan pilot
- Equal flow to both cylinder banks
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Key Specs
| MFG. Part # | 91015580 |
| Brand | Speedway Motors |
| Water Pump Type | Mechanical |
| Water Pump Style | Short |
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Return PolicySpeedway Motors 91015580 Details
Speedway Motors 91015580 Details
Each pump is manufactured from T6 aluminum and features an impeller with curved vanes for maximum flow, pressure and equal distribution to both sides of the block. It also features a unique seal assembly for leak proof operation.
- 3/4" shaft with 5/8" fan pilot snout
- 1/2" NPT hole on passenger side (for heater hose) and on top (for bypass hose)
- Stamped steel rear plate
- Extra thick fan hub
- 3/4" ultra duty bearings
- Adjustable cam stop
- State of the art aluminum castings
- Equal flow to both cylinder banks
- Precision impeller
- Higher flow rate and pressure rate
- Weighs 6 lbs.
- Does not have a set screw retaining the fan hub
- Legal for IMCA Southern Sport Modified class in 2023
NOTE: This pump is designed for street use and is not to be run on a motor which exceeds 5,500 RPM.
Learn how to choose the correct water pump for your application by reading our tech article. SBC - Short vs Long Water Pump.
Item Details
3/4" shaft, 5/8" pilot
Charts
910-15580 Instructions (PDF)
Guides & Documents
Speedway Motors 91015580 Specifications
Speedway Motors 91015580 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91015580 |
| Brand | Speedway Motors |
| Water Pump Type | Mechanical |
| Water Pump Style | Short |
| GENERAL | |
| Rotation | Clockwise/Standard |
| Housing Material | Aluminum |
| Housing Finish | Natural |
| Housing Color | Natural |
| Block to Hub Distance | 5.625 Inch (5-5/8") |
| Heater Inlet Size | 1/2" NPT |
| Hose ID | 1.82" |
| Shaft Length | 0.56" |
| Pilot Shaft Diameter | 0.63 Inch |
| Gasket(s) Included | Yes |
| Hardware Included | No |
| Weight | 6.4 lbs. |
| Sold in Quantity | Each |
| Notes | Clearance from back of pump to engine block mount is .94" For street use bypass plug will need to be removed. Does not have a set screw to retain hub. Does not have a snap ring. |