Chevy Big Block Long-Style High-Flow Mechanical Water Pump - Polished

• High-volume pump flow helps circulate coolant more efficiently through the radiator and engine passages

• 7.250 in. hub height and 0.625 in. pilot diameter help maintain proper pulley alignment and belt tracking

• 8-vane clockwise impeller design helps maintain steady coolant movement at varying engine speeds

• Polished Aluminum housing finish adds corrosion resistance with a cleaner performance appearance

This Chevy Big Block Long-Style High-Flow Mechanical Water Pump is designed for Chevrolet Mark IV Big Block V8 engines, including 396, 402, 427, and 454 applications. Featuring a high-volume 8-vane aluminum impeller and lightweight aluminum housing, it helps improve coolant circulation while maintaining compatibility with long-style accessory drive systems.

Pulley Alignment
7.250 in. hub height and 0.625 in. pilot diameter help position the pulley and fan drive during installation.

Impeller & Flow Design
The 8-vane clockwise high-volume impeller setup helps move coolant steadily through the block, heads, and radiator circuit.

Installation Notes
Confirm gasket included: yes, mounting hardware included: no, back housing included: yes before final assembly.

What applications is this water pump compatible with?
This water pump is commonly used on Chevrolet Big Block-powered muscle cars, street rods, trucks, restoration projects, and performance builds utilizing a long-style accessory drive system. Verify pulley alignment and bracket compatibility before installation.

Will this water pump fit my engine?
This water pump is designed for Chevrolet Mark IV Big Block V8 engines including 396, 402, 427, and 454 applications. It is intended for engines using a long-style water pump configuration. Verify your current pump dimensions and accessory-drive setup before ordering.

What does a water pump do?
A water pump circulates coolant through the engine and radiator to help maintain proper operating temperature.

What material is this water pump made from?
This water pump is made from aluminum, which helps with durability and heat dissipation.

What type of impeller does this water pump use?
This water pump features an 8-vane aluminum anti-cavitation impeller designed to improve coolant flow and help maintain efficient cooling at varying engine speeds. TSP high-flow pumps are designed to flow significantly more coolant than many stock water pumps.

Does this water pump include a gasket?
Yes, this water pump includes a gasket for installation.

Is this water pump suitable for performance applications?
Yes, this water pump is designed to support performance and upgraded cooling systems.

Will this water pump help prevent overheating?
Yes, a properly functioning performance water pump can improve coolant circulation and help reduce overheating.

Is this a good upgrade from a stock water pump?
Yes, this water pump is a strong upgrade for improving cooling efficiency and reliability.

Do I need to verify rotation before installation?
Yes, water pump rotation must match your belt drive system to ensure proper coolant flow.

Can this water pump be used with aftermarket radiators?
Yes, this pump can be used with upgraded cooling systems when properly matched to the engine setup.

How do I know if I need a long or short water pump?
Long and short water pumps use different hub heights and accessory-drive spacing. This pump uses a long-style configuration with a 7.250-inch hub height and must be paired with compatible pulleys and brackets for proper alignment.

Does this water pump fit a 348 or 409 Chevrolet engine?
No. This water pump is designed for Chevrolet Mark IV Big Block engines including 396, 402, 427, and 454 applications. Chevrolet 348 and 409 W-Series engines use a different water pump design.