1962-1967 Chevy II/Nova LS Radiator for Automatic Transmission
When fitting an LS engine and automatic transmission into a 1962 through 1967 Chevy II or Nova X Body, this radiator delivers reliable coolant flow through a full aluminum core and tanks designed to mate with factory frame rails and fan shroud mounts. Built from TIG welded aluminum it resists corrosion and keeps coolant moving smoothly while handling the heat output of 4L60E and 4L80E transmission fluid. It includes integrated transmission cooler ports that accept 4L60E and 4L80E cooler lines without adapters simplifying plumbing and cutting installation steps. Dropping coolant temperature quickly the dense fin core ensures stable operation during spirited runs or long highway stretches.
Precision TIG Welding Elevates Aluminum Tank Integrity
Every tank and core panel on this radiator is fused by TIG welding to create a uniform aluminum bond that stands up to vibration and pressure without leaks. By joining components at a fine scale, the welds eliminate tiny imperfections that can lead to coolant seepage during sustained operation. The smooth internal surfaces produced by this process promote uninterrupted coolant circulation, reducing hot spots and helping maintain consistent engine temperature. With each joint sealed reliably, builders gain confidence that the cooling system will endure repeated thermal cycles and spirited drives.
Dense Aluminum Core Delivers Rapid Heat Exchange
The tightly packed aluminum fin core maximizes surface area where coolant meets airflow, enabling swift transfer of engine heat to the atmosphere. Aluminum's excellent conductivity draws thermal energy away from the LS block quickly, cutting temperature spikes under heavy load or highway cruising. The reduced mass of the core also allows the system to adapt faster to sudden engine demands, preserving performance and limiting wear on internal components. Thanks to its light weight, the radiator contributes to balanced handling and retains the original suspension calibration of the chassis.
Coating Options Balance Cooling Efficiency and Protection
Owners can choose the natural bare finish for unobstructed aluminum-to-air contact that delivers peak heat rejection or select the black epoxy layer to guard against corrosion, road grime, and moisture. The bare version demands minimal upkeep and ensures the highest thermal throughput, ideal for builders chasing every degree of temperature control. The epoxy finish, applied under strict quality standards, offers a durable barrier without significantly hindering heat transfer, making it a smart choice for vehicles exposed to harsh elements. Both options sustain reliable performance across seasons.
Integrated Cooler Ports Streamline Transmission Plumbing
Designed specifically for 4L60E and 4L80E transmissions, the molded cooler ports accept factory-style lines directly, removing the need for extra fittings or adapters. Ports align precisely with the original frame rail brackets on 1962-1967 Chevy II and Nova X-Body chassis, simplifying installation and maintaining proper hose routing. This plug-in approach cuts assembly time and reduces potential leak points found in complex plumbing setups. Keeping the stock fan shroud mounts intact ensures correct airflow through the core, delivering consistent cooling under all driving conditions.
This radiator provides consistent cooling performance; for the same radiator but with fans, consider our 1962-1967 Chevy II Radiator (Automatic Transmission) with Fans.