1963-1966 C10/C15 and K10/K15 LS and LT Engine Swap Radiator for Manual Trans
Your LS or LT swap in a classic C10/C15 or K10/K15 chassis demands a cooling solution built for today's high-output V8s. The 1963-1966 GM Truck Radiator (Manual Trans) is engineered with a full aluminum core and tanks to manage intense heat rejection under towing loads or spirited cruising. With efficient tube fin density and straightforward hose connections, it integrates into your original frame rails without extra trimming. Corrosion-resistant construction and clear instructions help preserve both engine health and the truck's vintage appearance.
Precision TIG Welded Aluminum Core and Tanks
This radiator features TIG welded joints that deliver exceptional strength and a flawless seal between the tanks and core. TIG welding produces deep fusion and precise heat control, eliminating weak spots that can lead to leaks under high pressure or vibration. Crafted from premium grade aluminum, each weld remains clean and consistent, providing a sturdy structure that stands up to the rigors of heavy towing or spirited driving. Made in the USA, the assembly process follows strict quality standards to ensure each unit fits perfectly into the original frame rails. The result is a durable radiator that requires minimal maintenance and retains its integrity over years of use.
Engine Cooling Optimized for LS and LT Swaps
Designed specifically for LS and LT engine conversions, this radiator employs a full aluminum core with an ideal tube and fin layout to maximize heat rejection. Aluminum's natural thermal conductivity allows rapid transfer of engine heat into the cooling medium, preventing hotspots even when hauling trailers or tackling steep grades. The core's internal channels balance fluid flow, promoting uniform temperature distribution across the entire surface area. This precision engineering translates into stable operating temperatures and reduced thermal stress on critical engine components. Whether you're cruising at highway speeds or idling in traffic, the system ensures reliable performance and extended engine life.
Durable Bare Aluminum and Black Epoxy Coatings
Finish options include classic bare aluminum or a stylish black epoxy that enhances both durability and visual appeal. The raw aluminum surface forms a thin oxide layer that naturally resists corrosion, maintaining a vintage appearance without frequent cleaning. For applications requiring added protection, the black epoxy finish provides a tough barrier against moisture, road salt, and debris. Both finishes are applied with meticulous attention to adhesion and coverage, ensuring they withstand temperature changes and environmental exposure. This adaptability lets you choose a look that complements your truck's aesthetic while preserving long-lasting corrosion resistance.
This radiator delivers dependable cooling for your LS and LT swap projects and promises lasting engine protection in demanding conditions. For the same radiator but with fans see our 1963-1966 GM Truck Radiator (Manual Transmission) with Fans.