1967-1987 C/K Series, Blazer, Suburban Radiator for LS and LT Engine Swaps
Installing an LS or LT motor in a 1967 to 1987 GM C/K Series, Blazer or Suburban can quickly reveal the stock radiator's thermal limits and the 18.5 inch tall radiator for manual transmission resolves that by maintaining steady engine temperature under load. Engineered from high quality aluminum with a corrosion resistant finish, it aligns with factory mounting points to preserve bay clearance and original cooling line routes. Coverage includes C10, C15, K10, K15, Chevy Blazer and Suburban models, ensuring a dependable everyday cooling solution for classic truck conversions.
Precision Alignment with Factory Mounting Points
By matching the stock mounting locations, this radiator installs without modification, aligning cooling lines and preserving engine bay clearance. Precision alignment maintains firewall space and prevents interference with steering or suspension components. The direct fit design streamlines the LS or LT swap process and eliminates the need for custom brackets or adapters. This approach ensures consistent performance and reduces installation time for both DIY builders and professional shops.
High Quality Aluminum Core for Rapid Heat Rejection
Constructed from premium aluminum, the core offers exceptional thermal conductivity to remove heat quickly under heavy load. Its thin alloy walls allow higher coolant flow while keeping overall weight low, which benefits acceleration and handling. Aluminum also resists warping and fatigue from temperature cycling, making it ideal for classic GM trucks driven in demanding conditions. This material choice delivers consistent cooling even when towing or operating at sustained highway speeds.
Corrosion Resistance with Bare or Black Epoxy Finish
Choose between a bare aluminum surface for maximum heat transfer or a black epoxy coating that adds an extra barrier against moisture and road chemicals. Both finishes originate from US-based facilities, ensuring uniform coating thickness and adhesion. The protective layer on the epoxy option guards against oxidation and pitting, while the raw metal version excels at shedding heat. Together, these options offer long term durability and reliable performance in varied climates.
Optimized Core Height for LS and LT Engine Swaps
At 18.5 inches tall, the radiator core balances coolant capacity with airflow to maintain stable engine temperatures during spirited driving or towing. This height matches the factory profile for 1967-1987 C/K Series, Blazer, and Suburban models, preserving stock line routing and bay dimensions. The extra cooling volume prevents hot spots and reduces thermal stress on the engine block and heads. As a result, your LS or LT conversion runs cooler and more reliably under real-world conditions.
Count on consistent cooling under load for your LS or LT installation. For the same radiator but with fans see our 1967-1987 GM Truck Radiator 18.5" Tall (Manual Transmission) with Fans.