1988-1995 LS and LT Radiator for Chevy C/K1500 Trucks and GMT400 SUVs
When installing an LS or LT engine into a GMT400 Chevy C1500 or SUV the stock cooling assembly often runs hot under strenuous use. The 1988-1995 LS Radiator 28.25 inch core width for manual transmission applications addresses this by spreading heat across a broad aluminum surface to keep coolant temperatures in check during towing or spirited driving. Crafted with precision TIG welded tanks and core the design resists fatigue from thermal cycling and chassis flex while dropping neatly into factory supports. Hose ports align with original locations to simplify plumbing and ensure reliable operation in salt spray or extreme humidity.
Maximized Heat Dissipation via 28.25 Inch Aluminum Core
This radiator features a full 28.25 inch wide core that dramatically expands the surface area in contact with incoming air. By spreading coolant through a broader network of aluminum channels, heat is drawn out more quickly during heavy towing or spirited acceleration. Aluminum's natural conductivity moves warmth to the fins where it is released into passing air, reducing coolant temperature spikes on hot afternoons. Careful channel spacing creates a uniform temperature profile, preventing localized hot spots even under prolonged load. The design lessens dependence on supplemental coolers and integrates airflow from factory fan shrouds for consistent performance. This larger core footprint is a key reason LS and LT engine conversions maintain stable operating temperatures in GMT400 trucks and SUVs.
TIG Welded Aluminum Assembly for Reliable Service
Every junction between tanks and core employs precision TIG welding to form seamless bonds that resist vibration and thermal cycling. This process uses a focused arc and compatible filler to preserve aluminum strength without introducing weak areas common in other welding methods. Continuous bead patterns seal microscopic gaps and prevent coolant seepage as the assembly flexes with chassis movement. The robust welds maintain structural integrity under towing stresses and off road conditions, extending radiator life beyond stock units. Built entirely from high quality aluminum, the assembly delivers consistent performance in both daily driving and demanding duty cycles.
Flexible Corrosion Resistant Coating Options
Users may select a bare aluminum finish or a durable black epoxy layer to match environmental needs. The untreated surface takes advantage of aluminum's natural oxide barrier for rust resistance and allows quick visual inspection for damage or leaks. In contrast, the black epoxy adheres through weld joints and along core surfaces to repel road salt, moisture and debris. Both finishes are applied without blocking fins or impairing airflow to preserve full cooling capacity. This choice ensures long term protection in areas prone to salt spray or high humidity while maintaining core efficiency. Each option balances appearance and durability for year-round reliability.
Direct Fitment with Factory Mounts for Simple Installation
Designed to drop into the original brackets on 1988–1995 Chevy C1500, K1500, Tahoe, Suburban and GMC Yukon models, this radiator eliminates custom supports or modifications. Hose connections align with stock plumbing routes to maintain proper tension and minimize kinks. By preserving the vehicle's factory geometry, coolant flow remains true to the original design, avoiding unexpected pressure spikes. This direct fitment cuts installation time and reduces the risk of error during LS or LT swaps. Technicians can complete plumbing and mounting with standard hand tools, ensuring a neat appearance and dependable performance in any driving condition.
This radiator delivers reliable cooling for LS and LT swaps. For the same radiator but with fans see our 1988-1995 LS Radiator 28.25" Core Width (Manual Transmission) with Fans.