1988-1993 Chevy C1500/K1500/Suburban LS and LT Radiator with 34 Inch Core for Manual Transmissions
Whether you are swapping an LS or LT engine into a 1988 through 1993 Chevy C1500, K1500 or Suburban with a manual transmission, the LS Radiator 34" Core Width (Manual Trans) delivers precise fitment and dependable heat rejection. Engineered to drop straight into the factory mounts of GMT400 OBS chassis without modification, this radiator preserves original inlet and outlet positions for proper coolant flow. Constructed from high grade aluminum, it features a 34 inch core and 100 percent TIG welded tanks and core for leak resistance and reliable service. Choose bare aluminum or a black epoxy coat for corrosion protection in harsh conditions. Made in the USA for consistent thermal control during sustained loads.
Product Overview and Cooling Efficiency
The 1988 to 1993 LS Radiator features a 34 inch core width tailored specifically for manual transmission vehicles equipped with LS or LT power units. This full width aluminum core drops directly into the original factory mounts, eliminating the need for any custom bracket fabrication. By occupying the entire opening behind the grille, the radiator maximizes airflow and delivers superior heat rejection compared to narrower alternatives. This larger surface area helps maintain optimal coolant temperature during extended high load operation or towing applications. Consistent thermal management prolongs engine life, minimizes the risk of overheating and preserves peak torque output under demanding driving conditions.
Precision Construction and Durability
Every radiator is constructed from high grade aluminum and features tanks that are 100 percent TIG welded to the core. This welding technique creates a uniform bond across all joints, preventing stress fractures and leak points even after repeated thermal cycles. The use of aluminum enhances thermal conductivity, reduces overall weight and resists corrosion far better than traditional materials. Prior to shipment each unit undergoes a pressure and helium leak test to ensure absolute integrity. Manufactured in the USA under rigorous quality standards, these radiators support domestic supply chains and deliver reliable cooling performance mile after mile.
Seamless Installation with MuscleRods
Designed for direct compatibility with MuscleRods factory mount hardware, this radiator maintains correct engine placement and drive line angles without any guesswork. The inlet and outlet ports mirror stock positions for precise hose routing, keeping lines clear of headers, crossmembers and chassis rails. Proper hose slope encourages full coolant circulation and air pocket evacuation, which is critical in manual transmission setups. The exact fitment reduces install time, prevents undue stress on connections and ensures a clean look under the hood. By leveraging a purpose built mounting solution, installers and builders achieve consistent results without the trial and error of universal designs.
To get the same radiator but with fans included, check out our 1988-1993 LS Radiator 34" Core Width (Manual Transmission) with Fans.