18.5in Radiator with Fans for LS/LT Engine Swaps 1967-1987 GM C/K Trucks Blazer Suburban
The 1967-1987 GM Truck Radiator 18.5" Tall (Manual Trans) with Fans provides a direct bolt in cooling solution for LS and LT swaps in 1967 to 1987 SquareBody C/K trucks, Blazers, and Suburbans. Its aluminum core teamed with dual electric fans sustains uniform airflow at idle or under towing stress while aligning perfectly with factory bracket locations to eliminate trimming or adapters. Installers benefit from precise header tank placement and pre wired fan connectors that simplify hose routing and maintain an authentic engine bay presentation. By mirroring original mounting points the radiator lets coolant hoses and transmission cooler lines slip onto existing fittings without extra hardware or modifications.
Precise Alignment for LS and LT Engine Swaps in 1967 through 1987 GM C/K Series Trucks
This radiator core measures exactly eighteen point five inches in height and replicates the factory bracket locations on C10, C15, K10, K15, Blazer and Suburban frames from 1967 through 1987. By matching the original dimensions, coolant hoses and transmission cooler lines slide onto existing fittings without trimming or adapter fittings, eliminating fitment headaches. The precise header tank placement allows straight hose routing and reduces stress on connections, helping prevent leaks and premature wear. Installers gain a seamless bolt in installation that preserves the classic engine bay presentation while cutting labor time. This direct fit design is ideal for restoration builds and modernized trucks running LS or LT powerplants.
Intelligent Dual Electric Fan Operation for Reliable Cooling in Traffic and Towing
The dual high output fans built into this assembly maintain uniform airflow across the aluminum core even when the vehicle is idling or pulling heavy loads. Each fan is governed by a temperature sensor that engages only when coolant temperatures rise above preset levels, preventing unnecessary draw on the charging system during steady highway travel. Pre wired connectors plug directly into factory style fan circuits, removing the need for additional relays or custom wiring harness modifications. With automatic fan control, the system adapts to stop and go traffic and long uphill grades without manual intervention. This smart fan setup delivers consistent engine temperature management and guards against heat soak under demanding driving conditions.
Optimized Aluminum Core for Superior Heat Dissipation and Weight Savings
Constructed entirely from premium aluminum, the core and header tanks offer exceptional thermal conductivity compared with traditional copper brass units. An advanced tube and fin layout maximizes coolant surface area, accelerating heat rejection during sustained highway runs and towing operations. Aluminum's low mass also reduces front end weight, improving handling response and braking performance while contributing to better fuel economy. Its inherent corrosion resistance cuts down on maintenance intervals and prevents pitting over time, ensuring long term cooling reliability. This material choice balances rapid heat transfer with durable construction for both daily driving and heavy duty use.
Finish Selection Offering Authentic Look or Enhanced Protection
Builders can choose the natural bare aluminum finish to highlight the core's uncoated luster or opt for the black epoxy option for added resilience. The plain aluminum surface showcases a classic engine bay appearance and keeps weight to a minimum, while the epoxy layer acts as a barrier against chips, scratches and oxidation in harsh off road or salt belt environments. Each finish is applied through a controlled factory process to ensure uniform coverage and lasting adhesion. This flexibility lets vehicle owners tailor aesthetics without sacrificing cooling performance or durability. Both options make routine cleaning easier and maintain a fresh appearance over years of service.
Engineered for lasting reliability and straightforward installation this radiator sets the benchmark. For the same radiator but without fans consider our 1967-1987 GM Truck Radiator 18.5" Tall (Manual Transmission) Without Fans.