Unlock better performance and protect your investment with the Granatelli High-Flow Thermostat, specifically engineered for 2014–2026 GM LT engines. Built with premium copper, brass, and stainless-steel components, this thermostat is designed to outlast and outperform stock units—delivering reliable cooling when your engine needs it most. With a 180°F opening temperature, it helps your engine reach optimal operating conditions faster and keeps it running cooler under load, reducing the risk of heat-related damage during spirited driving or high-performance use. The high-flow design ensures maximum coolant circulation, promoting efficiency, longevity, and consistent performance.
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