1967-1987 C/K SquareBody Radiator for LS and LT Engine Swaps
Swapping an LS or LT engine into a 1967 through 1987 C/K Series pickup can push the original cooling system beyond its design limits. Offering an exact 18.5 inch core height and factory inlet and outlet positions, the 1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans) delivers a direct drop-in fit for C10, C15, K10 and K15 models, as well as Blazer and Suburban chassis. Constructed from corrosion-resistant aluminum, it balances thermal performance and weight savings to keep engine temps in check during highway runs or towing duty. With its design focused on preserving coolant flow and LS and LT compatibility, this radiator allows builders to install modern powerplants without rerouting hoses or modifying the firewall.
Exact Factory Height for C/K Series Installations
The radiator stands precisely 18.5 inch tall to align with the original mounting points on 1967-1987 C10, C15, K10 and K15 trucks as well as Blazer and Suburban chassis. By maintaining the factory inlet and outlet positions, it removes any need for hose rerouting or chassis modification and prevents tension or misalignment that can impede coolant flow. This exact fit ensures reliable temperature control whether on highway runs, towing duty or everyday driving.
Premium Aluminum Core with Rapid Heat Rejection
Crafted from corrosion resistant aluminum, the core offers exceptional thermal conductivity that swiftly moves engine heat into the airflow. Its expansive surface area promotes fast heat rejection under heavy load, spirited highway driving or sustained towing. In addition to superior cooling, the lightweight design helps reduce front end mass, improving handling response and overall fuel economy.
Finish Options for Long Term Corrosion Protection
Opt for a bare aluminum finish to showcase the core's natural sheen or select the black epoxy coating for enhanced resistance to chemicals, abrasion and road debris. The epoxy layer forms a sturdy barrier against moisture and environmental contaminants, extending service intervals in harsh conditions. Both finishes maintain a clean appearance that complements restored engine bays or modern swap installations.
Engineered Cooling Performance for LS and LT Engines
Designed to handle the higher coolant volumes and pump pressures common with LS and LT powerplants, this radiator prevents heat soak in stop and go traffic or under heavy load. Its robust construction ensures stable engine temperatures without the need for custom cooling modifications. Builders can focus on performance tuning and drivetrain setup knowing the cooling system will keep modern engines running at peak efficiency.
Engineered for reliable cooling in LS and LT applications. To complete your cooling system with the same radiator but with fans see our 1967-1987 GM Truck Radiator 18.5" Tall (Automatic Transmission) with Fans.