LS and LT Swap Radiator for 1988-1993 Chevy C/K1500 and Suburban
For LS and LT swaps in a GMT400 C/K Series truck or Suburban, the 1988-1993 LS Radiator 34" Core Width (Auto Trans) meets increased cooling demands with a design that fits factory mounts without drilling or brackets. Its 34 inch aluminum core aligns with stock hose angles and retains transmission cooler provisions for precise coolant flow. Precision TIG welds fuse the tanks and core into a sealed assembly that resists leaks during heavy towing or hot weather operation. Aluminum construction also resists corrosion and handles thermal cycling over years of service.
Maximized Cooling Capacity with 34 Inch Full Width Core
The expansive 34 inch core dramatically increases the surface area available for heat exchange, enabling coolant to shed engine heat more effectively when towing heavy loads or operating in hot environments. By expanding the contact between coolant passages and carefully spaced aluminum fins, this design prevents temperature spikes and maintains a stable operating range under sustained strain. Aluminum's high thermal conductivity draws heat away from the engine block rapidly, distributing it evenly across the entire core to avoid hot spots that can lead to heat soak. This consistent performance preserves engine output during long climbs or high speed runs, reducing the risk of overheating and protecting vital components. The result is reliable temperature control that enhances both everyday drivability and heavy duty use.
Precision TIG Welded Aluminum Structure for Robust Durability
Each joint on this radiator is fused with TIG welding to produce a uniform, high strength bond that resists vibration and repeated thermal cycling. This fully sealed assembly eliminates the need for gaskets or mechanical fasteners that can loosen or leak over time, ensuring coolant stays contained even under heavy duty conditions. Premium grade aluminum tanks and core are joined with exacting tolerances, creating a rigid structure that stands up to highway vibration and off road jolts without developing stress cracks. The corrosion resistant properties of high quality aluminum further extend service life by preventing rust from compromising the integrity of cooling passages. Built in the USA to exact standards, this radiator delivers long term reliability in demanding applications.
Direct Drop In Fit for Factory Mounts Simplifies Installation
Designed specifically for 1988 through 1993 C1500, K1500 and Suburban models, this radiator accepts stock mounting locations without drilling, trimming or custom brackets. It retains factory hose connections at the precise angles used by the original cooling system and preserves automatic transmission cooler fittings, delivering a complete plug in solution that minimizes labor time. By matching the original flow paths and pressure balance, the installation process becomes straightforward and repeatable, reducing the likelihood of leaks associated with ill fitting adapters. This attention to fitment also helps maintain consistent coolant circulation through the engine and transmission, ensuring your LS or LT swap runs cool from the very first startup. Technicians and do it yourself enthusiasts will appreciate the hassle free replacement experience.
Corrosion Resistant Finish Options for Restoration and Custom Builds
Builders can choose the classic bare aluminum finish or a durable black epoxy coating to complement either a period correct restoration or a modern custom engine bay. The untreated aluminum naturally forms a protective oxide layer that inhibits mild corrosion while preserving maximum thermal transfer efficiency. Alternatively, the black epoxy option adds a tough barrier against road debris, environmental exposure and surface pitting without reducing heat rejection performance. Both finishes maintain the core's open fin pattern for unrestricted airflow and consistent cooling under load. This flexibility allows enthusiasts to match or contrast the radiator finish with their vehicle's overall color scheme, blending functional performance with visual appeal.
To complete your cooling setup consider our 1988-1993 LS Radiator 34" Core Width (Automatic Transmission) with Fans which is the same radiator but with fans for simplified installation and reliable operation.