LS and LT Engine Swap Radiator for 1968-1972 Chevy Nova & 1964-1966 Buick Skylark
Many classic Nova and Skylark builds encounter overheating issues once a modern LS or LT engine is installed in the original X Body frame rails. This radiator uses precision TIG welded aluminum tanks and a dense multi tube core that channels coolant across a wide contact area to maintain stable temperatures even under spirited driving conditions in manual trans applications. Mounting pads are CNC machined to exact factory specs for the GM X Body chassis so installation requires only stock brackets without any cutting or drilling of the frame rails. Available in a polished finish for show quality or a black epoxy coat that resists road salt and moisture the radiator offers both style and resilience for daily use.
Precision TIG Welding for Seam Integrity
The radiator's tanks and core are assembled using precision TIG welding, a process that applies an electric arc under an inert gas atmosphere to join high-quality aluminum with exceptional accuracy. This method produces welds with minimal porosity and virtually no heat distortion, preserving the original geometry of each component. By maintaining exact tolerances at every joint, the assembly resists fatigue caused by engine vibration and road shocks. The result is a leak-proof barrier capable of handling the higher coolant pressures and thermal cycles generated by LS and LT engines. American craftsmanship ensures that each unit meets rigorous quality checks before it leaves the factory.
Efficient Multi Tube Core Design for Rapid Heat Transfer
The multi tube core layout maximizes coolant flow channels and contact surface area, speeding heat extraction from the engine block. Each tube sits within a dense fin array, allowing aluminum's natural conductivity to shed warmth efficiently into the surrounding air. This design maintains steady coolant circulation even at elevated engine speeds, preventing hot spots and temperature spikes under load. The overall light weight of the core reduces stress on mounting hardware and contributes to lower vehicle mass. Enthusiasts will notice more consistent operating temperatures during spirited driving on street or strip.
Direct Bolt In X Body Frame Fitment
Mounting pads are CNC machined to factory specifications for the 1968–1972 Chevy Nova and 1964–1966 Buick Skylark X Body frames, enabling a bolt-in installation with stock brackets. No trimming or drilling of the frame rails is required, saving time and preserving original chassis integrity. Exact alignment ensures the radiator sits squarely between support brackets and grille opening for optimal air flow. The precise fit minimizes the risk of interference with the transmission linkage or fan shroud, allowing a seamless integration into classic builds.
Choice of Corrosion Resistant Coatings
Buyers can select a polished bare aluminum finish for show quality or a black epoxy coat that adds a robust barrier against road salt and moisture. The polished surface highlights the natural metallic sheen, making it a standout feature in restored engine bays. The epoxy coat provides abrasion resistance without affecting thermal performance, ensuring long-term durability for daily driven vehicles. Both finishes withstand repeated heating and cooling cycles without flaking or chalking. This versatility lets builders tailor the radiator's appearance and protection level to match their restoration goals.
Count on consistent cooling performance in your classic build. To upgrade to the same radiator but with fans, consider our 1968-1972 Nova and 1964-1966 Skylark Radiator (Manual Transmission) with Fan.