26-Inch Core Radiator for LS Swap in 1973-1976 Chevy Corvette Y-Body
When planning an LS swap into a 1973 to 1976 Corvette Y Body manual chassis the stock cooling system often falters under sustained load and the 1973 to 1976 Corvette Radiator 26 inch Wide Core (Manual Trans) delivers added coolant capacity and airflow to keep engine temperatures in check. Built from lightweight aluminum in the USA it installs directly into factory mounts for manual transmission layouts without altering frame geometry. The extra 26 inch wide core spreads heat across more surface area to prevent rapid spikes during stop-and-go traffic or spirited highway runs.
Increased Core Width for Superior Heat Dissipation
Increasing the core width by 26 inches adds significant coolant volume and expands fin surface area to accelerate heat exchange. The broader matrix reduces hotspots by distributing thermal load evenly during low speed traffic or sustained highway speeds. Maintaining a higher volume of coolant in motion helps avoid sudden temperature spikes when idling at stoplights or tackling steep hills. This widened design leverages the extra cooling matrix to preserve steady gauge readings under continuous driving. The result is a reliable heat rejection path that keeps an LS engine within its optimal temperature window.
Direct Fitment for Corvette Y Body Manual Transmissions
Built to fit the mounting points on a 1973 to 1976 Corvette Y Body chassis with a manual transmission the radiator aligns inlet and outlet tubes to match original factory dimensions. Installers can reuse standard hoses and brackets without trimming or rerouting underbody lines. This precision mounting preserves chassis geometry and frame integrity while ensuring consistent coolant circulation. A direct drop in fit reduces installation time and mitigates the risk of seal leaks. Proper alignment under load is crucial for maintaining correct pressure in the cooling loop when paired with an LS swap.
Lightweight Aluminum Build for Durability and Conductivity
Constructed from quality aluminum the radiator core and tanks combine low weight with high thermal conductivity. Aluminum excels at rapid heat transfer and resists corrosion better than many alloys when exposed to water and road salts. The material withstands repeated heating and cooling cycles without cracking, making it ideal for daily driving or track use. Reduced mass lessens stress on mounting hardware and helps improve overall handling by shifting weight forward. Domestic production ensures tight quality controls and consistent material properties from batch to batch.
Protective Finishes to Combat Corrosion in Varied Environments
Two finish options let owners balance thermal performance and protection. The bare aluminum surface offers direct heat conduction with minimal resistance for maximum cooling efficiency. Choosing a black epoxy coat creates a protective barrier against moisture and debris that can accelerate oxidation in humid or coastal regions. Both treatments are applied under controlled conditions to avoid any clogging or restriction of fin channels. This flexibility allows users to tailor the radiator finish to local climate without compromising airflow or coolant flow rates.
Count on precise engineering for reliable cooling and for the same radiator but with fans see our 1973-1976 Corvette Radiator 26" Wide Core (Manual Transmission) with Fans.