LS and LT Auto Trans Radiator with Fans for 1963-1966 C/K-Series Chevy GMC Trucks
Swapping an LS or LT powerplant into a 1963 to 1966 C/K Series Chevy or GMC truck can push factory cooling to its limits so the 1963-1966 GM Truck Radiator (Auto Trans) with Fans is designed to keep engine and transmission temperatures in check. Bolting directly to the original C10, K10, C15 and K15 mounts, this all aluminum radiator features a 100 percent TIG welded core and side tanks that resist leaks and corrosion while integrated dual fans ensure even airflow at low speeds. A built in transmission cooler port aligns with automatic setups to simplify hose routing and installation remains straightforward thanks to precise mounting points.
Precision TIG Welding for Optimal Heat Rejection
The radiator is assembled using TIG welding to fuse the aluminum core and side tanks with unmatched accuracy. This method preserves the natural thermal conductivity of aluminum and ensures each joint remains leak free under repeated temperature changes. The clean weld beads eliminate any filler material that could impede coolant flow or trap heat. As a result the radiator delivers stable engine temperatures whether you are idling in traffic or cruising on the highway.
Dedicated Electric Fans for Consistent Cooling
Two electric fans are mounted directly to the radiator to draw air through the full face of the core when vehicle speed alone cannot supply adequate airflow. Each fan operates independently to cover half the radiator surface and prevent localized warming. Rapid activation under load means the cooling system responds instantly to rising temperatures and avoids thermal spikes. This setup is especially beneficial during heavy towing or extended drives at low speed.
Bare or Epoxy Finish to Resist Corrosion
Customers may choose the clean look of bare aluminum or a robust black epoxy coating that shields against moisture and chemical exposure. The bare option develops a natural patina over time while the epoxy layer stands up to road salt and dirt without flake off. Critical areas such as mounting pads and cooler ports are protected from coating over spray through precise masking. These choices allow the radiator to match both restored factory trucks and modern custom builds.
Original Mount Compatibility for Streamlined Installation
This radiator bolts directly to the factory mounts on C slash K Series Chevy and GMC trucks built between 1963 and 1966, eliminating the need for custom brackets or frame alterations. The built in transmission cooler port lines up precisely with automatic transmission plumbing, simplifying hose routing and keeping the engine bay tidy. Each unit undergoes dimensional inspection to ensure a consistent fit across multiple vehicles. The straightforward installation process lets you complete your LS or LT swap without major modifications.
Engineered for a precise fit and durable performance. For the same radiator but without fans consider our 1963-1966 GM Truck Radiator Automatic Transmission.