{"product_id":"gm-ls1-ls2-hi-flow-thermostat-160-f-71-c-160-f-temperature","title":"GM LS1 \u0026 LS2 Hi-Flow Thermostat, 160°F (71°C) 160°F Temperature","description":"\u003cdiv\u003e\n\u003cp\u003eEngine management depends on reliable, properly calibrated thermostats. The GM LS1 \u0026amp; LS2 Hi-Flow Thermostat opens at 160°F (71°C), designed to reduce flow resistance and promote efficient coolant movement for LS1 and LS2 engines. Crafted from copper and steel, this high-flow design supports quicker, more consistent heat cycling while helping maintain optimal operating temperatures. It’s a direct drop-in replacement with no modifications required and includes the rubber seal already installed for a ready-to-fit install.\u003c\/p\u003e \u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOpening temperature: 160°F (71°C) for a cooler-running engine profile versus factory units\u003c\/li\u003e \u003cli\u003eHi-flow design reduces coolant restriction, aiding faster warm-up and improved thermal response\u003c\/li\u003e \u003cli\u003eCopper\/steel construction for durability and reliable heat transfer\u003c\/li\u003e \u003cli\u003eDirect drop-in installation with no modifications needed\u003c\/li\u003e \u003cli\u003eIncludes rubber seal; compatible replacement rubber gasket available: AF59-1143 (53.9mm O.D.)\u003c\/li\u003e \u003cli\u003ePart of Aeroflow Performance GM LS thermostat lineup, which offers two temperatures lower than factory units\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat’s included and compatibility\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIncludes rubber seal for immediate installation\u003c\/li\u003e \u003cli\u003eReplacement Rubber Gasket to Suit GM LS1 and LS2 (53.9mm O.D.) AF59-1143\u003c\/li\u003e \u003cli\u003eCompatible with GM LS1 and LS2 engines\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation considerations\u003c\/h3\u003e\n\u003cp\u003eThis is a straightforward, direct-fit replacement that requires no modifications. Proper sealing ensures a reliable seal against coolant loss and consistent thermostat operation. Thermostats can fail by sticking open or shut, which affects heater performance or can lead to overheating; choosing a properly rated, high-quality thermostat helps maintain stable engine temperatures and protect against thermal-related issues.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"TGM Performance Parts","offers":[{"title":"Default Title","offer_id":47379570655402,"sku":"AF49-1143","price":36.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/AF49-1143.jpg?v=1756708407","url":"https:\/\/tgmperformance.com.au\/products\/gm-ls1-ls2-hi-flow-thermostat-160-f-71-c-160-f-temperature","provider":"TGM Performance Parts","version":"1.0","type":"link"}