Material Excellence: Constructed from durable T6 aluminum for long-lasting performance., Optimized Impeller Design: Features curved vanes for enhanced coolant flow, superior pressure, and even distribution throughout the engine block., Leak-Proof: Equipped with a unique seal assembly ensuring a leak-proof operation and peace of mind., Advanced Bearing: Incorporates a robust 3/4" bearing for smooth and reliable operation., Efficient Performance: These lightweight aluminum pumps flow up to 35% more coolant than traditional stock pumps, with reduced power requirements. Note: Some clearance and bolt pattern considerations apply.
Big Block Chevy Short Aluminum Water Pump Speedway Motors
Big Block Chevy Short Aluminum Water Pump
Sku # 91015588
Mfr. Part # 91015588
Condition
New
Brand
Speedway Motors
Sold
Each
Details
Info

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, these aluminum pumps weigh less than half than the stock pump and require less power to operate.

  • T6 aluminum
  • 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" bearing

Note: Clearance from back of pump to engine block mount is .75" May interfere with some 8" balancers. Fan hub drilled for 1-3/4" and 2-1/8" bolt patterns.

Charts

(PDF)

Specs
Sold in Quantity
Each
Rotation
Clockwise/Standard
Housing Material
Aluminum
Water Pump Style
Short
Water Pump Type
Mechanical
Notes
Clearance from back of pump to engine block mount is .75" May interfere with some 8" balancers. Fan hub drilled for 1-3/4" and 2-1/8" bolt patterns.
Heater Inlet Size
1/2" NPT top and side
Gasket(s) Included
Yes
Hardware Included
Yes
Shaft Length
0.43
Hose ID
1.81
Weight
7.35
Housing Finish
Natural
MFG. Part #
91015588
Housing Color
Natural
Pilot Shaft Diameter
0.63 Inch
Block to Hub Distance
5.75 Inch (5-3/4")
Reviews

Pump Looks Great

Rated
Product Rating
by TomTom on February 04, 2022

Summary: Great looking water pump! I haven't installed yet but it looks great.

Yes, I recommend this product.

Perfect fit warp speed shipping my go to speed shop

Rated
Product Rating
by Tes on January 25, 2022

Summary: I use it on my 68 427 Chevy

Cons: O

Pros: Research your part they usually have it good pri

Yes, I recommend this product.

Great product

Rated
Product Rating
by Cole on July 22, 2021

Summary: Worked great. Fit perfect

Yes, I recommend this product.

I would buy this again

Rated
Product Rating
by Greg on March 08, 2021

Summary: Should hold up good

Cons: None

Pros: Good quality

Yes, I recommend this product.

Yes

Rated
Product Rating
by Bad boy bloodgood on December 29, 2020

Summary: Good quality material worked well for my applications

Yes, I recommend this product.

Related Items / Suggested Parts
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.