78-88 GM G-Body LS Swap Module Radiator

The 78-88 GM G-Body LS Swap Module Radiator is purpose-built for classic muscle car and street rod enthusiasts undertaking an LS engine swap on second-generation G-Body platforms—including Chevrolet Monte Carlo, Malibu, and El Camino models. This radiator addresses a critical cooling challenge faced by LS swap builders: factory G-Body cooling systems lack the thermal capacity to handle the heat output of modern LS-series engines, which produce significantly higher BTU loads than original carburetor or throttle-body fuel-injected powerplants.

Cold Case Radiators engineered this module-style unit to drop directly into the factory radiator location, eliminating extensive custom fabrication while maintaining stock aesthetic appeal and underhood packaging. Built with heavy-duty aluminum construction and equipped with efficient bar-and-plate core technology, this radiator maximizes coolant flow and heat rejection compared to traditional tube-and-fin designs.

The module design accommodates the dimensional constraints of the 1978–1988 G-Body chassis while providing the flow rates necessary for LS engine thermal management at sustained highway speeds and performance driving. At 15 × 15 × 36 inches and weighing 19 pounds, the radiator maintains stock mounting points and allows integration with existing cooling fan setups or modern electric fan assemblies, depending on builder preference. The aluminum construction resists corrosion and delivers long-term durability in high-performance applications.