GM LS3 Hi-Flow Thermostat, 180°F (81°C) 180°F Temperature

GM LS3 Hi-Flow Thermostat, 180°F (81°C) Opening Temperature

Engineered for GM LS3 engines, this Hi-Flow Thermostat delivers a precise 180°F opening, designed to optimize coolant flow and enhance thermal and volumetric efficiency. Crafted from copper and steel, it provides durable, reliable performance under demanding driving conditions.

Choosing a cooler opening temperature helps manage engine temperature more consistently. Aeroflow Performance offers GM LS thermostats at temperatures below factory units, and this 180°F option is a direct drop-in replacement with no modifications required, including a rubber seal for straightforward installation.

Key features

• Opening temperature: 180°F (81°C)
• Material: Copper/Steel for reliable heat transfer and durability
• Fitment: Direct drop-in for GM LS3
• Includes rubber seal
• Replacement rubber gasket option: AF59-1145 (56mm O.D.) for GM LS3 setups

Tackling common thermostat failures, this hi-flow unit helps prevent overheating from a stuck-closed valve and maintains heater efficiency if the valve sticks open, supporting consistent engine temperature management and protecting against costly repairs.