LS and LT Radiator for 1967-1987 GM C/K Series Trucks Blazer Suburban
When swapping an LS or LT motor into a 1967-1987 Chevrolet or GMC C/K Series truck, the stock cooling arrangement often lacks the capacity to maintain safe engine temperature under load, so the 1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans) with Fans provides a direct fit replacement that sustains coolant flow and heat rejection in everyday driving and towing. Packing a high conductivity aluminum core with US made tanks and preinstalled dual electric fans, this unit replicates original inlet placement and auto trans cooler ports for hassle free installation without fabricating brackets or modifying cooler lines. With dual fans that engage only when needed and draw minimal alternator current at idle or in traffic, it maintains steady airflow, while the precise core height aligns with factory brackets to preserve hood clearance and belt routing for a clean install.
Effortless Fit with Stock Mounting Points
This radiator mirrors the original inlet and transmission cooler ports, ensuring a straightforward installation on C10, C15, K10 and K15 models as well as Blazer and Suburban frames. By matching the factory bracket locations and core height, it preserves hood clearance and belt alignment without the need for drilling or bracket fabrication. Builders benefit from a precise fit that maintains straight cooling lines, reduces potential leak points, and speeds up the swap process.
Superior Aluminum Core for Rapid Cooling
At the heart of this design is a high conductivity aluminum core paired with US made tanks that excel at shedding heat under load. The tube and fin arrangement maximizes surface area, so coolant transfers thermal energy quickly even during towing or spirited driving. Aluminum resists corrosion from road salts and coolant additives, and its light weight contributes to balanced handling and reduced front-end mass without sacrificing strength.
Efficient Dual Fans for Consistent Airflow
Two preinstalled 12-inch electric fans link directly to the factory relay and temperature switch, drawing power only when needed to support idle or stop-and-go conditions. This setup minimizes alternator load at low engine speeds while preventing hot spots behind the core during demanding duty cycles. Redundancy in the twin-fan layout ensures continuous airflow even if one unit encounters a fault, keeping coolant temperatures in check at all times.
Custom Finish Options Preserving Performance
Choose between a bare aluminum finish that highlights TIG weld beads and machining marks or a durable black epoxy coating that defends against stone chips and environmental contaminants. Both options maintain the radiator's thermal efficiency, while the epoxy layer adds extra corrosion protection for off-road or heavy-duty applications. This finish flexibility enables custom styling without compromising heat rejection or service life.
Trust the direct fit design for reliable cooling and efficient operation. For the same radiator but without fans consider our 1967-1987 GM Truck Radiator 18.5" Tall (Automatic Transmission) Without Fans.