1988-1993 Chevy C/K Series and Suburban Radiator for LS and LT Swaps
Designed for manual transmission GMT400 trucks, the 1988-1993 LS Radiator 34 inch Core Width with Fans provides dependable cooling when swapping LS or LT engines into C1500, K1500 or Suburban models. Its full width aluminum core spans 34 inches to expand coolant volume, reduce hotspots and deliver efficient thermal exchange under heavy tow loads or stop and go traffic in hot ambient conditions. Built around a precision TIG welded structure, it features dual high output fans that activate with coolant temperature to ensure steady airflow and prevent heat soak during idling or steep climbs. Installation locks onto existing GMT400 brackets with no cutting or drilling required and aluminum tanks resist leaks and corrosion, keeping coolant in check during repeated towing or street use.
Precision TIG Welded Aluminum Tanks for Leak Free Operation
Each seam on the tanks and core is completed with precise TIG welding, a process that fuses high grade aluminum without filler porosity or weak points. This level of joint integrity is essential for trucks that endure vibration and pressure surges common to LS and LT engine conversions under heavy tow loads. By ensuring uniform wall thickness and robust bonds, the radiator resists leak paths and maintains internal pressure under severe duty. Domestic production allows for strict oversight of weld quality and component fit.
Expansive 34 Inch Aluminum Core for Superior Heat Exchange
Spanning the full width of the GMT400 frame, the 34 inch aluminum core expands coolant capacity and surface area for accelerated heat removal. Extruded passages and densely packed fins guide the fluid evenly and prevent hot spots that can arise during extended towing or spirited acceleration. Aluminum’s high conductivity facilitates rapid thermal exchange, while the core’s lightweight design preserves front end balance on C1500, K1500 and Suburban models. The direct fit to factory bracket points simplifies installation and avoids cutting or drilling.
Dual Fan Cooling for Consistent Airflow Under Load
The pair of high output fans is calibrated to activate based on coolant temperature, ensuring steady airflow across the entire core in traffic or steep climbs. An integrated shroud directs air uniformly so no segment of the core runs starved of fresh air. This dynamic response prevents heat soak when the vehicle idles under load, keeping engine temps within safe limits for both street use and track duty. The fan assembly locks onto factory mounts for direct installation without extra brackets.
Coating Options Balancing Protection and Conductivity
Builders may choose the natural bare aluminum finish to maximize thermal transfer and highlight the raw metal sheen under the hood. Alternatively, a black epoxy coat provides a durable barrier against moisture, road salt and debris without compromising core performance. Both options undergo strict quality controls to ensure the coating process does not alter tube dimensions or fin density. This flexibility lets owners tailor appearance and resilience according to their climate or styling preference.
Built to deliver dependable temperature control under demanding conditions. For the same radiator without fans see our 1988-1993 LS Radiator 34" Core Width (Manual Transmission).