1955-1957 Chevy TriFive Radiator with Auto Trans Cooler for LS and LT Engines
When you swap an LS or LT into a 1955-1957 Chevy TriFive with automatic transmission, managing coolant flow is critical and the 1955-1957 Chevy Radiator (Auto Trans) delivers a bolt-in solution. Crafted from precision sheet aluminum, the radiator features a TIG welded core and tanks that resist leaks and endure repeated heat cycles. It aligns precisely with original frame mounts and shroud fittings to preserve the factory appearance and streamline hose routing for any TriFive body style. A corrosion resistant finish and lightweight structure help maintain steady flow while reducing front end mass for balanced handling on road or strip. Available in bare aluminum or black epoxy finish, the unit sustains heat rejection performance while providing a clean underhood presentation.
Precision TIG Welded Aluminum Tanks and Core
The 100 percent TIG welded method bonds the tanks and core with precision that surpasses brazing or solder joints. TIG welding creates a fusion at the molecular level that resists vibration and stress from repeated thermal cycles. This technique eliminates extra sealant layers and potential leak paths, so coolant passages stay sealed under the heavy demands of LS or LT engines. The smooth joints also maintain straight channels that support uniform flow and prevent turbulence. As a result the radiator offers reliable operation even in challenging driving conditions.
Engineered for Superior Heat Rejection
Heat rejection is driven by a thin wall core design that maximizes the surface area in contact with coolant. Narrow passages accelerate thermal exchange so heat leaves the engine block and cylinder heads quickly under sustained loads. Aluminum’s innate conductivity works hand in hand with the core geometry to pull heat away from critical areas. This ensures a consistent temperature window that helps maintain optimal engine efficiency and prevents hotspots during heavy use. This approach reduces temperature spikes and promotes coolant stability across different driving scenarios.
Durable Coating Options for Corrosion Protection
Two finish options let builders tailor appearance and protection without altering thermal performance. The bare aluminum surface can be polished or painted to match restorations or custom schemes, while the black epoxy coating adds a barrier against moisture and road debris. The epoxy version also resists surface pitting and discoloration for a like new look after many seasons. Both finishes maintain the slim profile and minimal mass so handling balance remains unchanged when the radiator is installed. These choices help preserve cooling efficiency while offering visual flexibility.
Direct Bolt in Fit for TriFive Automatic Swaps
Designed specifically for 1955 through 1957 Chevy TriFive models equipped with automatic transmission, this radiator aligns perfectly with factory frame mounts and shroud brackets. It installs with original hardware so no custom mounting plates or frame modifications are required. Hose connections match the stock routing, simplifying the installation process and ensuring clean engine bay aesthetics. Precise shroud alignment also supports efficient fan performance without additional adapters. The direct fit capability reduces install time and yields a professional underhood presentation.
Rely on MuscleRods for factory fit and lasting performance. To explore the same radiator but with fan check out our 1955-1957 Chevy Radiator (Manual Transmission) with Fan.