The term direct-fit gets thrown around a lot today, but most require some alterations, even when they claim they fit. Only DeWitt specializes in direct-fit radiators for Corvette.
DeWitt Radiator's direct-fit Corvette aluminum radiators install into the stock mounting and use the factory connections without modifications or adapters. Special LS series radiators are built to fit the stock mounting but configured to hook up with a newer LS series engine. Special fans are mounted directly to the radiator, eliminating the need for the factory fan and shroud. Connection sizes are changed to match the ports on the new motor. It also includes a relay and wiring harness.
Each radiator starts with a USA-made furnace brazed core, featuring two rows of cooling tubes, a serpentine fin, and detailed craftsmanship, providing the ultimate in strength and appearance.