1963-1966 C10/C15/K10/K15 Truck LS and LT Radiator with Fans
When installing an LS or LT engine in a 1963 to 1966 C10 or K10 truck, the stock cooling rarely keeps engine and transmission temperatures in check during towing or city traffic. The 1963-1966 GM Truck Radiator (Auto Trans) with Fans features a TIG welded aluminum core and an integrated transmission cooler port for clean hose routing. With LS and LT compatibility built in, it bolts directly to factory C and K frame mounts using original hardware for precise placement and fuss free installation. Made in the USA, its dual electric fans activate automatically to draw air evenly across every fin and keep fluid temps within safe limits under heavy load.
Precision TIG Welding for Core Integrity
The radiator core and side tanks are joined by TIG welding to deliver uniform strength and leak free performance under heavy load. This welding method fuses high quality aluminum without adding filler material that can block heat flow. A smooth weld bead maintains consistent wall thickness around joints and resists cracking through repeated temperature cycles. By securing coolant chambers in a single piece assembly the design preserves full crossflow and rapid heat rejection during towing and traffic.
Efficient Dual Electric Fan Operation
Dual electric fans are mounted to the face of the radiator to draw air evenly across every fin for efficient thermal transfer. Each fan covers half of the core so no warm areas develop under load. When coolant sensors detect rising temperatures the system engages the fans automatically before fluid levels reach a threshold. This immediate response is crucial for towing or low speed driving where natural airflow is limited.
Coating Options to Resist Corrosion
Customers can choose a natural bare aluminum finish that will acquire a classic surface patina over time or a black epoxy coat that resists moisture and road salt. The epoxy finish is applied with protective masking around mounting points and cooler ports to maintain precise alignment surfaces. Both options maximize corrosion protection and ease of cleaning without impeding the accuracy of hose connections. This attention to detail extends the life and appearance of the radiator in real world use.
Direct Fitment to Factory Frame Mounts
Installation is simplified by direct attachment to the factory C and K frame mounts using original hardware for an exact fit. The radiator's dimensions match the stock cradle so no frame or support modifications are required. The integrated transmission cooler port aligns with standard plumbing locations to keep hoses neat and accessible. By combining precise placement with familiar connections builders can reduce installation time and focus on other swap tasks with confidence.
Built for reliable cooling in LS and LT swaps with aluminum core and factory mounts. For the same radiator but without fans consider our 1963-1966 GM Truck Radiator Automatic Transmission.