1967-1987 C/K Series Trucks Blazer Suburban Radiator with Fans for LS and LT Engines
If you are swapping an LS or LT powerplant into a 1967 to 1987 C/K Series truck, Blazer or Suburban this 20.75 inch tall manual transmission radiator with fans steps in to keep coolant temperatures under control during towing or hard driving without requiring frame modifications. Featuring an aluminum core with thick walls that shed heat quickly, the assembly stands up to steep grades. Its pre installed dual electric fans engage only when temperatures rise or vehicle speed drops, regulating flow. With inlet and outlet ports matching the original layout, hoses follow factory paths and the radiator slips into the stock frame for a true bolt in solution.
High Capacity Aluminum Core for Rigorous Cooling
This radiator features a 20.75 inch tall core crafted from high quality aluminum that rapidly absorbs and sheds heat generated by LS and LT powerplants. The increased core volume boosts thermal capacity during heavy duty towing or steep grade climbs, helping maintain stable coolant temperatures under prolonged load. Aluminum’s natural resistance to corrosion ensures the core stays clean and free from rust even in wet or salted conditions. By combining robust wall thickness with a lightweight design, this assembly preserves front end balance and steering responsiveness while delivering superior heat rejection. The manual transmission configuration also allows clearance for shift linkage and crossmember components without any frame alterations.
Efficient On Demand Dual Electric Fans
Pre installed dual electric fans engage automatically when coolant temperature exceeds the preset threshold or vehicle speed falls below optimal airflow levels. This on demand activation prevents unnecessary parasitic drag and eliminates heat soak during idle or slow traffic conditions. A molded fan shroud channels airflow evenly across the entire core surface, minimizing hot spots and ensuring consistent cooling under hard use. Drawing minimal current when running, these fans provide reliable performance without overloading the electrical system. The result is steady engine operation whether the truck is climbing mountain roads, crawling off road terrain or idling at a job site.
Precision Bolt In Fitment to C K Series Frames
Engineered specifically for 1967 through 1987 C K Series trucks, Blazers and Suburbans, this radiator drops directly into the factory frame rails without any trimming or adapter brackets. Inlet and outlet ports align with the original layout, allowing hoses to follow stock routing and maintain proper flow without kinks. All mounting points line up with existing brackets to secure the radiator firmly in place and resist vibration during heavy duty work. External tanks and support brackets are reinforced to prevent flex under load and off road excursion stresses. This precise fitment streamlines the installation process, letting owners upgrade cooling capacity without altering body or frame components.
Tailored Protective Finishes for Lasting Performance
Choose between a classic bare aluminum finish for a vintage engine bay aesthetic or an optional black epoxy coat for extra protection against moisture and road debris. Both treatments seal the core and tanks to prevent pitting from grit, salt and environmental exposure. The epoxy layer also conceals minor surface blemishes, simplifying cleanup after heavy use and maintaining a fresh appearance. With no welds left exposed, the protective finish extends service life by keeping corrosion at bay. Smooth surfaces shed dirt and grime, making routine maintenance faster and helping ensure reliable operation over many seasons.
For the same radiator but without fans consider our 1967-1987 GM Truck Radiator 20.75" Tall (Manual Transmission) - HD Cooling and trust MuscleRods for reliable cooling solutions.