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#91015581
Small Block Chevy Short Heavy Duty Aluminum Water Pump
11 Reviews
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7 Questions
- This heavy duty aluminum water pump fits small block Chevy engines and is short water pump length of 5-5/8"
- Extra thick fan hub with 3/4" fan snout and 3/4" ultra duty bearings
- Fan hub press-fit and set-screw retained to allow for high RPM use with mechanical fans
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Product Summary
Chevy Small Block V8, Mechanical Water Pump Type
- This heavy duty aluminum water pump fits small block Chevy engines and is short water pump length of 5-5/8"
- Extra thick fan hub with 3/4" fan snout and 3/4" ultra duty bearings
- Fan hub press-fit and set-screw retained to allow for high RPM use with mechanical fans
- State of the art aluminum ribbed casting for additional bearing support
- Precision high flow impeller delivers equal flow to both cylinder banks for maximum cooling capability
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Key Specs
| MFG. Part # | 91015581 |
| Brand | Speedway Motors |
| Water Pump Type | Mechanical |
| Water Pump Style | Short |
| Pump Flow | High-Volume |
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Speedway Motors 91015581 Details
This super heavy duty race water pump features additional casting designs for more strength and reinforcement, plus a 3/4" fan pilot shaft and super duty bearing. It has 1/2" NPT threaded outlets on both the top and side, plus a 3/16" steel rear plate. It weighs 7-3/4 lbs.
- 3/4" fan snout
- Extra thick fan hub
- 3/4" ultra duty bearings
- Threaded for adjustable cam stop
- State of the art aluminum castings
- Equal flow to both cylinder banks
- Precision impeller
- Higher flow and pressure
- Legal for IMCA Southern Sport Modified class in 2023
Learn how to choose the correct water pump for your application by reading our tech article. SBC - Short vs Long Water Pump.
Item Details
The working height of this pump is approx. 5.85 ".The working height of this pump is approx. 5.85 ".
Charts
910-15581 Instructions (PDF)
Guides & Documents
Speedway Motors 91015581 Specifications
Speedway Motors 91015581 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91015581 |
| Brand | Speedway Motors |
| Water Pump Type | Mechanical |
| Water Pump Style | Short |
| Pump Flow | High-Volume |
| 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 on the top and side |
| Hose ID | 1.88" |
| Pilot Shaft Diameter | 0.75 Inch |
| Gasket(s) Included | Yes |
| Hardware Included | No |
| Weight | 7.75 lbs. |
| Sold in Quantity | Each |
| Notes | Clearance from back of pump to engine block mount is .875" |