Aluminum Radiator for Chevrolet Corvette (1973-1976) 5.7L 7.4L Manual

High-Efficiency 3-Row Aluminum Radiator for 1973-1976 Chevrolet Corvette

What it Does: The High-Efficiency 3-Row Aluminum Radiator replaces the failure-prone factory cooling unit on the 1973-1976 Chevrolet Corvette to drastically reduce engine coolant temperatures and eliminate heat soak under heavy throttle.

The Stock Chevrolet Corvette Thermal Bottleneck

Factory cooling systems in the mid-generation C3 Corvette relied on restrictive, heavy copper-brass radiator cores assembled with lead-tin solder. Over time, these stock units suffer from severe internal calcification, galvanic corrosion, and solder bloom, which drastically chokes coolant flow. Exacerbated by the aerodynamics of the C3 chassis—which draws air from a low-pressure zone beneath the front bumper—the OEM radiator cannot reject BTUs fast enough to keep high-displacement Small Block Chevy (5.7L) and Big Block Chevy (7.4L) engines within safe operating temperatures during extended operation.

The Engineering Solution

Engineered for maximum thermal dissipation, this bolt-in performance radiator is fabricated from lightweight, aircraft-grade aluminum. It features a robust 3-row brazed tube-and-fin core that substantially increases surface area exposure compared to stock designs. Robotically TIG-welded end tanks eliminate the leak-prone bonded seams of factory copper units, maintaining structural rigidity under elevated operating pressures. Optimized specifically for manual transmission layouts, this radiator maximizes coolant capacity and laminar heat transfer across the entire frontal area, safeguarding your powertrain against thermal degradation.

Technical Specifications

Compatibility

• 1973 Chevrolet Corvette 5.7L (350 cu in) V8 Manual
• 1973 Chevrolet Corvette 7.4L (454 cu in) V8 Manual
• 1974 Chevrolet Corvette 5.7L (350 cu in) V8 Manual
• 1974 Chevrolet Corvette 7.4L (454 cu in) V8 Manual
• 1975 Chevrolet Corvette 5.7L (350 cu in) V8 Manual
• 1976 Chevrolet Corvette 5.7L (350 cu in) V8 Manual

Frequently Asked Questions

Does this fit the C3 Corvette?
Yes, this is a direct fit for the 1973-1976 Chevrolet Corvette C3 chassis equipped with Small Block Chevy or Big Block Chevy engines and manual transmissions.

Does this radiator feature an internal transmission fluid cooler?
No, this unit is dedicated strictly to manual transmission configurations and does not include internal fluid lines for an automatic gearbox.

The Chevrolet Muscle Caliber

Classic American muscle demands uncompromising cooling capability to match peak torque demands. This direct-replacement radiator ensures your Corvette maintains thermal equilibrium on wide-open highway pulls or continuous track sessions, providing reliable temperature control without modifying factory mounting points.