LS and LT Radiator for 1958 Chevy Impala Bel Air Delray B-Body
When you fit an LS or LT motor into your 1958 Chevy B-Body the 1973-1974 Nova Radiator (Manual Trans) with Fan is engineered to control coolant temperatures under sustained load. Its precision CNC machined inlet and outlet ports align with factory hose paths avoiding custom plumbing and preserving clearances in tight engine bays for manual transmission setups. Featuring TIG welded aluminum tanks and a full core assembly it withstands thermal cycling without stress cracking and its corrosion resistant aluminum offers a favorable strength to weight ratio. Dual fans draw air evenly across every fin row to maintain steady coolant temperatures at idle or during spirited runs on the street or track.
Precision TIG Welded Aluminum Construction
The radiator’s tanks and core are assembled using precision TIG welding to ensure uniform bead profiles and eliminate porosity at each joint. This welding process creates seams that resist stress cracking under repeated temperature changes, a crucial factor when cooling high output LS or LT engines. High quality aluminum provides excellent thermal conductivity, transferring heat rapidly from coolant to the core fins. At the same time its inherent strength keeps the assembly rigid without adding unnecessary mass to the engine bay. Consistent weld geometry also promotes even coolant flow through internal passages, enhancing overall heat rejection and reliability.
Efficient Dual Fan Cooling System
Two powerful electric fans are mounted directly to the core to draw air evenly across every fin row, preventing hot spots during stop and go driving or on the track. Their blade geometry and motor speed are calibrated to maintain steady airflow at low engine speeds, while automatic temperature sensors activate the fans only when needed. By integrating fans onto the radiator, there is no requirement for bulky fan shrouds, preserving valuable space in a tight B-Body engine bay. This design ensures consistent operating temperatures for LS and LT swaps under all driving conditions without compromise.
Factory Alignment for Hassle Free Installation
The 1973–1974 Nova radiator is designed to use original mounting points on 1958 Impala, Bel Air, and Delray frames, offering a direct fit with no need for custom brackets or frame alterations. Inlet and outlet ports are precisely located to match factory hose paths for manual transmission layouts, enabling proper belt and pulley alignment from the start. Fan wiring follows existing harness routes, eliminating extra drilling or trimming and reducing installation time. Clear instructions guide installers through each step, so both seasoned mechanics and first-time swap builders can achieve a perfect fit.
Durable Bare Aluminum and Black Epoxy Coatings
Choose the classic bare aluminum finish to highlight the precision machining and TIG weld detail, or opt for the black epoxy coating to shield the core from moisture, road salts, and debris. Each surface treatment is applied in a controlled environment to maintain coolant flow characteristics and prevent any obstruction of fin channels. The epoxy option offers enhanced resistance to pitting and corrosion in harsh driving conditions, while the polished aluminum version reflects engine bay lighting for a show-quality appearance. Both finishes deliver long lasting protection without sacrificing thermal performance.
Engineered for consistent cooling in LS and LT installations this radiator maintains optimal temperatures under sustained load and fits directly in tight B-body engine bays. For the same radiator but without fans see our 1958 Impala Radiator (Manual Transmission).