1962-1967 Chevy II/Nova X-Body LS Radiator for Automatic Transmission
Installing an LS engine and automatic transmission into a Chevy II or Nova X Body from 1962 to 1967 demands precise coolant control, and the 1962-1967 Chevy II Radiator (Auto Trans) is engineered to deliver steady temperatures with a fit matched to factory frame rails and fan shroud mounts. This radiator features full aluminum tanks and a dense fin core joined by TIG welding for even coolant flow and resistance to corrosion through repeated thermal cycles. Integrated ports accept 4L60E and 4L80E cooler lines without adapters to streamline plumbing and save installation time. Builders will find consistent frame bracket alignment preserves stock geometry while quickly rejecting heat under spirited driving or long highway stretches.
Precision TIG Welding for Leak Free Seams
The radiator's full aluminum tanks and core panels are joined exclusively by TIG welding, fusing each joint at the molecular level to create uniform, impervious seams. This technique minimizes porosity and prevents micro leaks that can develop under repeated thermal cycles or spirited driving. By eliminating spatter and maintaining smooth internal surfaces, coolant flows without turbulence, ensuring consistent temperature regulation even under heavy loads or towing. Builders benefit from a robust assembly that withstands vibration and pressure spikes without compromising seal integrity over time.
Dense Aluminum Core for Rapid Heat Rejection
At its heart lies a closely packed aluminum fin core engineered to maximize surface area for efficient heat exchange. Aluminum's high conductivity draws thermal energy away from the LS engine block almost instantly, while the core's reduced mass allows the cooling system to react swiftly to sudden load changes or stop-and-go traffic. This design delivers lower operating temperatures during extended highway cruises or track sessions, preserving engine performance and reducing internal wear. The light weight of the core further enhances vehicle balance and helps maintain original suspension tuning.
Protective Bare or Epoxy Finish for Enhanced Durability
Choose between a natural bare aluminum appearance or a black epoxy coating based on project needs. The bare finish offers direct metal-to-air contact for peak thermal efficiency and requires minimal upkeep. In contrast, the epoxy option applies a uniform protective layer that guards against road salt, moisture, and airborne debris while still allowing effective heat transfer. Both finishes are applied under controlled conditions to ensure consistent adhesion and coverage, extending radiator life and maintaining reliable performance through changing climates and seasons.
Integrated Transmission Cooler Ports for Effortless Installation
Engineered to accept 4L60E and 4L80E cooler lines without adapters, the radiator includes molded ports that align precisely with factory frame brackets on 1962–1967 Chevy II and Nova X-Body chassis. This plug-in configuration cuts installation time and eliminates potential leak points from extra fittings. Retaining original fan shroud mounts ensures any electric or mechanical fan operates at its intended airflow capacity. The result is a streamlined plumbing setup that preserves stock geometry and delivers consistent cooling under all driving conditions.
Engineered for consistent cooling in demanding conditions and to explore the same radiator but with fans see our 1962-1967 Chevy II Radiator (Automatic Transmission) with Fans.