1991-1996 B-Body LS and LT Swap Radiator for Chevy Impala/Caprice/Roadmaster
When you swap an LS or LT motor into a 1991 through 1996 Chevy Impala, Caprice, or Roadmaster with automatic transmission, the stock cooler often falls short. This radiator features a TIG welded aluminum core and tanks that shed heat at a rapid rate while resisting corrosion. Every mounting tab and factory transmission cooler port aligns precisely to let you reuse the original fan and shroud without trimming or extra brackets. With its broad core and tightly packed fin arrangement, coolant temperature remains stable under highway cruising or spirited drives.
Precision TIG Welded Aluminum Construction
The radiator core and tanks are joined using a TIG welding process that fuses each aluminum piece seamlessly into a single assembly. This approach eliminates seams where cracks or leaks can form when the unit heats and cools repeatedly. With full aluminum construction, the assembly resists distortion under load and reacts quickly to changes in coolant temperature. Technicians gain a uniform structure that stands up to vibrations from daily use or spirited throttle application, making for a durable heat exchanger built for lasting service.
Optimized Core Layout for LS and LT Cooling Demands
Swapping an LS or LT motor into a 1991 to 1996 B-Body platform adds a significant thermal load that the factory radiator cannot handle. This design features a broad core surface and densely spaced fins that maximize contact with passing air, speeding heat transfer away from coolant. The resulting pattern prevents hotspots around the cylinder heads and block rails, reducing the risk of gasket failures or oil breakdown. Whether cruising at highway speeds or tackling steep inclines, coolant temperature stays within a stable range, supporting both everyday driving and occasional spirited runs.
Direct Fit Mounting for Factory Fan and Shroud
Every mounting tab and transmission cooler port aligns exactly with the original positions on Impala, Caprice, and Roadmaster chassis, allowing installers to reuse the stock fan, shroud, and hoses without trimming or extra brackets. This precise fit cuts installation time and preserves the airflow pattern engineered by the OEM, ensuring consistent engine breathing and cooling performance. By retaining the factory fan assembly, there is no need to adjust electrical circuits or control modules. The outcome is a clean underhood appearance and a trouble free fit that works from the first start.
Protective Finishes in Bare Aluminum or Epoxy Coating
Installers can choose between a classic bare aluminum finish, which naturally forms a thin oxide layer, or a black epoxy coating that adds an extra barrier against road salt and moisture. The epoxy layer seals metal surfaces to block airborne contaminants, helping the radiator retain its appearance even in harsh winter conditions. Both treatments preserve the core's structural integrity while guarding against corrosion that can reduce cooling efficiency. This flexibility lets owners tailor finish and protection without sacrificing function or resale appeal.
Trust this precision build to deliver stable temperatures in all driving conditions. To get the same radiator but with fans see our 1991-1996 Impala Radiator (Automatic Transmission) with Fans.