Water Neck Thermostat - GM LS Series 180 Degree

The Water Neck Thermostat - GM LS Series 180 Degree by PRW Industries is a precision engine cooling component designed for high-performance LS-platform vehicles. This thermostat regulates coolant flow at 180 degrees Fahrenheit, ensuring optimal operating temperature during various driving conditions, including track days and street performance applications.

This thermostat opens at a lower temperature than factory 195-degree units, allowing cooler coolant circulation through the engine block and cylinder head. This design helps reduce peak combustion chamber temperatures, improving detonation resistance and enabling safer ignition timing for boosted or high-compression builds. The water neck mounting configuration integrates directly into the LS engine's coolant passage system, promoting proper flow dynamics.

Enthusiasts and mechanics favor this thermostat for various applications, including carbureted, naturally aspirated, and forced-induction setups. It's particularly beneficial for street machines running pump gas with raised compression, making it a valuable upgrade for any LS engine swap or performance build.