Description
Part Number: AF49-1146
Aeroflow GM LS3 Hi-Flow Thermostat – 180°F / 81°C
Optimise coolant circulation and maintain lower operating temperatures on your GM LS3 V8 engine with the Aeroflow AF49-1146 high-flow performance thermostat.
Key Features & Performance Benefits
- ☑ Lower Operating Temperature: Opens at 180°F (81°C) to maintain cooler engine temperatures for superior thermal and volumetric efficiency.
- ☑ High-Flow Design: Enhances coolant volume circulation to eliminate hot spots during track use and spirited driving.
- ☑ Direct Drop-In Fitment: Plug-and-play replacement engineered specifically for GM LS3 thermostat housings.
- ☑ Durable Construction: Built from premium copper and steel components for reliable operation under high heat cycles.
- ☑ Rubber Gasket Included: Supplied with a fitted rubber sealing gasket for a leak-free installation.
Technical Specifications
| Brand | Aeroflow Performance |
|---|---|
| Part Number | AF49-1146 |
| Engine Application | GM LS3 V8 |
| Opening Temperature | 180°F (81°C) |
| Construction Material | Copper / Steel |
| Fitment Type | Direct Drop-In Replacement |
| Gasket Included | Yes (Molded Rubber Seal) |
What’s Included in the Box
- 1x Aeroflow AF49-1146 GM LS3 180°F / 81°C Hi-Flow Thermostat
- 1x Molded Rubber Sealing Gasket
Designed for high-performance automotive and motorsport applications, Aeroflow Performance thermal management components ensure dependable cooling reliability under severe race conditions. Backed by JP Racing’s motorsport expertise and fast UK dispatch.







Reviews
There are no reviews yet.