T6 Aluminum Construction: Made from T6 aluminum, this small block Chevy water pump offers excellent strength, durability, and heat dissipation for optimal performance., Curved Vane Impeller: Equipped with an impeller featuring curved vanes, this water pump ensures maximum flow, pressure, and equal distribution of coolant to both sides of the engine block, promoting efficient cooling., Leak-Proof Operation: The water pump boasts a unique seal assembly that guarantees leak-proof operation, providing peace of mind and preventing coolant leakage., 3/4" Bearing: With a 3/4" bearing, this lightweight aluminum long-style water pump is specifically designed for Chevy small block V8 engines, offering a reliable and precise fit., Street Use Design: Please note that this water pump is intended for st Small Block Chevy Aluminum Water Pump, Long Sku # 91015590 Mfr. Part # 91015590 Condition New Brand Speedway Motors Sold Each Details Info
Lightweight aluminum long style pump for S/B Chevy.Has provisions for your power steering mount.
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. .
Charts
(PDF)
Specs Sold in Quantity Each Rotation Clockwise/Standard Housing Material Aluminum Water Pump Style Long Water Pump Type Mechanical Notes Clearance from back of pump to engine block mount is 1.38" Not for engines exceeding 5,500 RPM. Heater Inlet Size 1/2" NPT Gasket(s) Included Yes Hardware Included Yes Shaft Length 0.45 Hose ID 1.80 Weight 8.05 Housing Finish Natural Housing Color Natural Pilot Shaft Diameter 0.63 Inch Block to Hub Distance 7.38 Inch MFG. Part # 91015590 Reviews yes Rated by Brian f250 on March 30, 2021
Summary: very nice piece
Yes, I recommend this product.
Great value for superb product Rated by John on March 26, 2021
Summary: On a 421 high compression , solid roller SBC. Dropped temp 25 degrees. Picked up 23 hp and 17 ft/lb torque 😎
Cons: None
Pros: Easy to install, dropped water temp 25 degrees
Yes, I recommend this product.
Would not buy again Rated by Jeff on December 28, 2020
Summary: Had to redrill 3 of the 4 mounting holes so it would bolt to the block. Had to redrill the alternator mounting holes cause it was crooked and the power steering hole threaded and should have a hole all the way through has to drill that out also. Took on and off 5 times. Not Worth it buy a usa made pump for more money or a cast iron water pump....
No, I would not recommend this product.
Exact Fit Rated by GoGo69Camaro on November 20, 2020
Summary: The part is light, clean, and a perfect fit. Absolutely no issues with the water pump.
Yes, I recommend this product.
Great Rated by Rumble on April 16, 2020
Summary: Bolts right on to any chevy 350
Yes, I recommend this product.
Related Items / Suggested Parts Stewart Components 13113 Small Block Chevy Stage 1 Water Pump, Long Double Groove S/B Chevy Long Water Pump Pulley, Black Triple Groove Crank Pulley for Small Block Chevy Long Pump Black Reduction Pulley Combo for Small Block Chevy Long Pump Small Block Chevy Alum. Long Pump Double Groove Upper Pulley Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. 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.
