Chevy V8 Aluminum 45 Degree Water Neck - Black

45 Degree Outlet Design – Helps improve upper radiator hose routing

Secure Coolant Connection – Supports leak-resistant cooling system operation

Aluminum Construction – Built for heat, pressure, and long-term reliability

Application-Specific Fitment – Designed for the listed engine and sealing configuration

This 45 Degree water neck is designed to provide a secure coolant outlet connection between the engine and upper radiator hose. Its aluminum construction with a black finish supports reliable coolant routing while giving the engine bay a clean finished look.

45 Degree Outlet Configuration
The outlet angle helps route the upper radiator hose cleanly in performance, restoration, and custom cooling system layouts.

Secure Hose Connection
Designed to create a tight connection at the thermostat housing area to support reliable coolant flow and help reduce leak points.

Aluminum Construction
Built from aluminum to handle coolant system heat, pressure, and repeated service conditions.

Application-Specific Cooling Fitment
Designed for the listed engine family and sealing style, with fitment verified by the product dimensions and specifications.

What applications is this water pump pulley compatible with?
This water pump pulley is designed for COMPATIBLE WITH, CHEVROLET BIG BLOCK V8 GEN. II (MARK IV), 6.5 L / 396 in3, 6.6 L / 402 in3, 7.4 L / 454 in3, CHEVROLET BIG BLOCK V8 GEN. V, 7.4 L / 454 in3, CHEVROLET BIG BLOCK V8 GEN. VI, 7.4 L / 454 in3, CHEVROLET SMALL BLOCK V8 GEN. I, 4.3 L / 262 in3, 4.3 L / 265 in3, 4.4 L / 267 in3, 4.6 L / 283 in3, 4.9 L / 302 in3, 5.0 L / 305 in3, 5.0 L / 307 in3, 5.4 L / 327 in3, 5.7 L / 350 in3, 6.6 L / 400 in3.

Will this water pump pulley fit my engine?
This pulley is intended for Chevy/GM applications and should match your water pump style, belt system, and accessory setup.

What does a water pump pulley do?
A water pump pulley drives the water pump using the engine belt system, helping circulate coolant through the engine.

What material is this pulley made from?
This pulley is made from aluminum, providing strength while helping reduce rotating weight.

Can pulley size affect cooling performance?
Yes, pulley diameter affects water pump speed, which can influence coolant flow and engine cooling.

Is this a good upgrade over a stock pulley?
Yes, aftermarket pulleys can improve durability, reduce weight, and enhance engine bay appearance.

Do I need to verify belt compatibility before installation?
Yes, groove count and belt type must match your existing accessory drive system.

Do I need to verify alignment before installation?
Yes, proper pulley alignment is critical for belt tracking and preventing premature wear.

Do I need hardware for installation?
You may need bolts or spacers depending on your specific setup.

Can this pulley be used on performance builds?
Yes, water pump pulleys are commonly used in performance and custom engine builds.