1955-57 Chevy TriFive Radiator for LS and LT Swaps
When planning a TriFive engine swap with an LS or LT powerplant, the 1955-1957 Chevy Radiator (Manual Trans) with Fan addresses the precise cooling demands of a manual transmission layout. Built in the USA from aluminum to match original TriFive contours, this radiator fits 150, 210, Bel Air and Delray models without modification and includes a 16 inch electric fan for reliable airflow under all driving conditions. The polished core moves heat efficiently while the black epoxy finish resists corrosion and simplifies maintenance. Whether tackling street cruising or spirited runs, this radiator ensures steady coolant flow and preserves classic engine bay clearance for power steering and alternator brackets.
Product Overview
The 1955 to 1957 Chevrolet radiator assembly designed for manual transmissions delivers precise fitment and robust cooling capacity for classic restorations and street builds. Each unit ships with a single 16" high-performance fan installed, providing immediate and powerful airflow across the core under heavy load or idle conditions. Manufactured in the USA to exacting standards, this radiator supports both LS and LT engine platforms, ensuring compatibility with modern powerplants. Preinstalled wiring for the fan simplifies the hookup process and reduces labor time. Factory pressure testing confirms leak-free performance, so builders can focus on tuning rather than troubleshooting coolant loss.
Construction and Heat Rejection
Crafted entirely from premium cast aluminum, the core and end tanks deliver superior thermal conductivity compared to traditional copper-brass designs, accelerating heat transfer away from coolant. The parallel-flow core architecture boosts coolant volume in each pass and increases surface contact area, leading to faster temperature stabilization during extended highway runs or stop-and-go traffic. Reinforced header plates and robust brazed joints withstand repeated pressure cycling, while precision-machined inlet and outlet ports align with standard hose ends. This design not only lowers operating temperatures by up to 20°F over stock units but also extends water pump service life by reducing fluid viscosity under extreme conditions.
Engine and Mount Compatibility
This radiator is engineered specifically for LS and LT engines and integrates seamlessly with MuscleRods mounting brackets and crossmembers. By matching factory centerline locations, the package ensures correct radiator height and angle, preserving ideal belt alignment and pulley clearances. The defined crossmember geometry maintains proper drivetrain angles, reducing vibration and preventing premature bearing wear. Coolant hose routing follows OE paths to avoid kinks or sharp bends, while the bolt-in fan shroud mounting points provide consistent fan-to-core spacing. Together, these compatibility features deliver a turnkey solution for custom frames, classic chassis swaps, and high-output builds that demand reliable engine cooling and precise mechanical alignment.
For a fan-free option, consider our 1955-1957 Chevy Radiator (Manual Transmission), the same radiator but without a fan.