LS Swap Pin-Mount Radiator for 1963-1972 Corvette Auto Trans
If you are installing an LS engine into a 1963 to 1972 Corvette with an automatic transmission the stock cooling gear often falls short and risks overheating under load. This 1963 to 1972 Corvette Pin-Mount Radiator (Auto Trans) drops straight into original Y Body pin mounts without cutting or custom brackets and aligns perfectly with the factory fan shroud while retaining hood clearance. Constructed from TIG welded aluminum tanks and core the design delivers steady coolant flow rapid heat rejection and superior corrosion resistance. Finished raw or with black epoxy coating it preserves classic underhood style and supports reliable temperature control during spirited drives.
Precision TIG Welding for Consistent Thermal Performance
The radiator features fully TIG welded tanks and core to create a strong fusion bond at every joint. This welding method ensures smooth interior surfaces for steady coolant flow and reliable heat transfer. Each bead resists vibration from engine operation and high coolant pressure cycles, reducing fatigue and leak risk. By using precise welds, this design upholds durability and consistent cooling under spirited acceleration or extended highway drives. All units are made in the United States under strict quality standards to guarantee reliable fit and finish.
Direct Fitment in 1963 to 1972 Corvette Y Body Frames
This LS swap radiator installs into the original Y Body frame using existing pin mount locations without cuts or new brackets. It aligns perfectly with the factory fan shroud and retains the correct hood clearance for a seamless appearance. Installation requires only stock hardware, so builders spend less time on fabrication and more on tuning. Preserving the chassis mounting geometry also sustains the airflow patterns the Corvette was engineered to deliver, ensuring efficient cooling at every speed.
Bare Aluminum or Black Epoxy Finishes for Underhood Protection
Owners may choose a raw aluminum finish to maximize heat rejection through direct metal exposure, or opt for a black epoxy coat that seals the surface against moisture and road contaminants. The epoxy layer is applied with controlled thickness to avoid compromising cooling efficiency or flaking over time. This finish selection allows a balance between corrosion resistance and thermal performance based on local climate and maintenance habits. Both options maintain the classic styling of a mid century engine bay while extending service life.
Lightweight Aluminum Construction for Rapid Heat Rejection
Crafted entirely from premium aluminum, this radiator reduces overall vehicle mass while enhancing thermal conductivity. Aluminum core tubes quickly transfer heat from the coolant to the fins, accelerating dissipation under load. The slender design maintains minimal fluid volume so the engine and transmission reach optimal operating temperature more quickly. This material choice ensures consistent temperature control during spirited runs or long distance cruising, supporting both engine and transmission reliability.
Count on MuscleRods for reliable cooling in your LS swap project. For the same radiator but with fan see our 1963-1972 Corvette Pin-Mount Radiator (Automatic Transmission) with Fan.