1967-1987 C/K Series Trucks & Blazer/Suburban LS and LT Engine Swap Radiator
If you are fitting an LS or LT powerplant into a classic C/K Series pickup, maintaining optimal coolant flow is essential. This 20.75 inch tall radiator for manual transmissions delivers LS and LT compatibility by expanding coolant volume and using a dense tube and fin core to dissipate heat during slow crawls or heavy towing. Mounting tabs and inlet positions match factory frame rails and hoses so no cutting or custom brackets are needed. Aluminum construction resists corrosion and reduces front end weight while moving heat rapidly from coolant to air.
Direct Fitment for 1967 to 1987 C K Series Frames
This radiator installs directly on C10, C15, K10 and K15 pickup frames as well as Blazer and Suburban models from 1967 to 1987 with manual transmission. Precision formed mounting tabs and inlet outlets align with original frame rails and hose connections to eliminate the need for custom brackets or adapter fittings. As a result, installation time is reduced and the risk of misalignment is minimized for both professional shops and DIY enthusiasts. This plug in approach ensures your project stays on schedule and reduces complexity in engine swap applications.
20.75 Inch Core for Enhanced Heat Rejection
The extra tall 20.75 inch core expands coolant volume and maximizes surface area to maintain stable engine temperatures under heavy towing or slow off road maneuvers. A dense tube and fin arrangement promotes constant coolant flow and rapid transfer of heat into the passing air stream. This larger core dimension is critical when combining a modern LS or LT engine with a classic cooling system, especially in extreme summer conditions or on steep climbs. Consistent thermal management prevents hotspots and contributes to long term engine reliability.
Aluminum Construction for Weight Savings and Durability
Every component of this radiator is crafted from premium grade aluminum to deliver a strong yet lightweight assembly. Aluminum's natural corrosion resistance guards against road salt and moisture for extended service life without adding mass to the vehicle’s front end. Its high thermal conductivity also allows heat to move swiftly from the coolant to the fins. The reduction in nose weight improves suspension response and handling once the LS or LT mill is installed.
Bare Aluminum and Epoxy Coating Choices
Customers can choose a clean bare finish that develops a subtle patina over time or a factory black epoxy coating for added protection against moisture and debris. The uncoated option offers a classic mechanical appearance while the epoxy treatment forms a tight barrier that slows corrosion in harsh climates. Both finishes undergo strict quality control in domestic manufacturing to ensure consistent adhesion and visual appeal. This flexibility in surface treatment lets builders tailor the look and resilience of their cooling system.
For the same radiator but with fans see our 1967-1987 GM Truck Radiator 20.75" Tall (Manual Transmission) with Fans - HD Cooling and trust MuscleRods for precise fit and consistent cooling.