Water Pump Pulley - GM LS Series 4-Hole Polish.

The Water Pump Pulley - GM LS Series 4-Hole Polish from PRW Industries is designed for LS engine builders and enthusiasts who want to enhance the cooling system's aesthetics while ensuring durability. This polished aluminum pulley is a direct replacement for the factory unit on various GM LS-based engines, making it an essential upgrade for custom engine bays and high-performance builds.

Manufactured from lightweight aluminum, this four-hole pulley features a mirror-finish polish that enhances the visual appeal of engine compartments. The 4-hole mounting pattern adheres to industry standards for LS series water pump shafts, ensuring a direct bolt-on fit without modifications. PRW's precision casting and finishing techniques help eliminate run-out issues, reducing vibration and wear on serpentine belt systems.

This pulley is particularly beneficial for LS engine builders, restomod shops, and DIY enthusiasts, offering straightforward installation and long-term corrosion resistance. While it is compatible with several GM LS variants, it is essential to verify compatibility with specific engine models. The lightweight design contributes to reduced rotating mass, making it a valuable addition for high-RPM applications.