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Small Block Chevy Short Heavy Duty Aluminum Water Pump

Specs
Material Type:
Aluminum
Weight:
7.75
Sold in Quantity:
Each
Finish:
Natural
Shaft Diameter:
0.75
Mounted Length:
5.63
Shaft Length:
0.42
Hose ID:
1.88
Gasket(s) Included:
Yes
Hardware Included:
No
Heater Inlet Size:
1/2" NPT on the top and 1/2" NPT on the side.
MFG. Part #:
910-15581
Garage Sale:
No
Water Pump Style:
Short
Notes
Clearance from back of pump to engine block mount is 1.00"
Small Block Chevy Short Heavy Duty Aluminum Water Pump
Small Block Chevy Short Heavy Duty Aluminum Water Pump
Small Block Chevy Short Heavy Duty Aluminum Water Pump
Small Block Chevy Short Heavy Duty Aluminum Water Pump

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Details

Reviews

Q & A

What's in the Box

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

910-15581 Instructions (PDF)

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

Notes

The working height of this pump is approx. 5.85".

Item Details

3/4" Snout

Customer Reviews

Rated 4 out of 5 by 2 reviewers.
RATING BREAKDOWN
2 reviews
5 Stars
0
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Andy
KC, KS
Product Rating

Good water pump but beware

July 22, 2012
This pump does not cover the bypass hole on the passenger side, I tapped it and pluged it with a 3/8 inch bolt to help it run cooler. I would not get the 3/4 inch shaft again, it is a pain to convert the pully and fan along with the spacer to 3/4.
Yes, I recommend this product.
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RumRunner
Wichita, KS
Product Rating

Works well

January 26, 2010
I've had mine in place for a couple months with no issues.
Pros:
  • Good Quality
Yes, I recommend this product.
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Page 1 of 1
91015581

Product Q&A

2 questions : 2 answers

1 answers

i have a 1970 chevy truck will this pump line up with my stock pulleys for the water pump thx

larry
az
July 16, 2011

i have a 1970 chevy truck will this pump line up with my stock pulleys for the water pump thx

Answers

July 18, 2011
Jason
No, on a 1970 if it has OEM pump it should be the long style like part #91015590. Long style measures 7-1/4" from where fan mounts to where pump mounts on block. Short pump measures 5-5/8"
1 answers

Top threaded connection for heater hose? Hi, could you please confirm the top threaded connection size for the heater hose. You have stated 3/8 NPT which is more like a fuel line size. The stock old pump I have on my 1965 Corvette is more like 3/4" NPT. I presently have a bushing in the stock pump to reduce it to a 1/2" NPT where I have a shutoff valve. Thanks

glennpm
October 11, 2012

Top threaded connection for heater hose? Hi, could you please confirm the top threaded connection size for the heater hose. You have stated 3/8 NPT which is more like a fuel line size. The stock old pump I have on my 1965 Corvette is more like 3/4" NPT. I presently have a bushing in the stock pump to reduce it to a 1/2" NPT where I have a shutoff valve. Thanks

Answers

October 12, 2012
Jason
This pump has one 3/8" NPT outlet on top and two 1/2" NPT outlets on the side(one on each side)
Page 1 of 1

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