LS Radiator for 1973-1976 Chevy Corvette Y-Body Auto Transmission 26 Inch Wide Core
Swapping an LS engine into a 1973 to 1976 Corvette Y-Body with automatic transmission reveals the limits of the factory cooling package. The 1973 to 1976 Corvette Radiator 26" Wide Core (Auto Trans) addresses these demands with a sturdy aluminum core offering a full 26 inch width and integrated transmission fluid passages. This single unit arrives with a choice of bare aluminum finish or black epoxy coating and installs directly to stock mounting brackets. Crafted in the USA it delivers consistent coolant circulation without added fans to support varied driving scenarios.
Precision Engineered Cooling for 1973–1976 Corvette
The 26 inch wide core radiator is tailored for 1973 through 1976 Corvette models equipped with an automatic transmission and an LS engine conversion. Constructed from high-quality aluminum, the core offers superior heat rejection by rapidly conducting thermal energy away from the engine. The expanded face area lowers coolant temperature under sustained load, reducing the risk of overheating and minimizing stress on gaskets and seals. By improving thermal management, this radiator helps preserve engine components and delivers consistent performance in stop-and-go traffic as well as long highway cruises. Manufactured in the USA under stringent quality checks, each unit is verified for core uniformity and leak-free operation before shipment.
Optimized Fitment with MuscleRods
Integration with the MuscleRods mount system ensures precise engine placement and accurate drivetrain angles within the classic Corvette chassis. This engineered partnership maintains correct alignment of the LS powerplant, radiator, and accessory drives, eliminating misalignment issues that can lead to reduced coolant flow or premature hose wear. Each mounting point corresponds to the factory frame locations, avoiding major modifications or custom brackets. The radiator's overall height and inlet-outlet positions perfectly match Corvette stock dimensions, providing a seamless installation path for restoration and performance projects alike.
Durable Construction and Reliable Operation
Designed for rigorous use, the radiator core features precision-welded tubes and thick header tanks that resist vibration and thermal cycling. A dense fin pattern maximizes surface contact with airflow while standing up to road debris, ensuring uninterrupted cooling. Every assembly undergoes pressure testing to guarantee long term integrity under high system pressure. The plug and play design includes pre-cut mounting flanges and an integrated filler neck compatible with the factory cap, so no additional adapters are needed. This robust assembly supports sustained performance, making it an ideal upgrade for Corvette owners seeking dependable cooling in both street and track environments.
To complete your same radiator but with fans, consider our 1973-1976 Corvette Radiator 26" Wide Core (Automatic Transmission) with Fans.