LS/LT Radiator for 1955-1957 Chevy TriFive (150/210/Bel Air/Delray)
When installing an LS or LT engine into a 1955 to 1957 Chevy TriFive with a manual gearbox, reliable cooling is essential. The 1955-1957 Chevy Radiator (Manual Trans) is engineered specifically for 150, 210, Bel Air and Delray models, featuring an all aluminum construction with 100% TIG welded tanks and core for unmatched structural integrity. Available in bare aluminum or black epoxy coating, this radiator aligns inlet and outlet locations to preserve original frame rails and mounting points. Crafted in the USA, it delivers consistent thermal control without integrated fans and retains compatibility with MuscleRods engine mount kits.
Precision Aluminum Construction
This radiator is built with 100% TIG welded high grade aluminum tanks and core for full metal consistency. The lightweight plates deliver uniform heat transfer across the entire surface and resist vibration in dynamic operation. Its dense fin layout maximizes heat dispersion without adding bulk, ensuring rapid response to temperature spikes. Precision welding eliminates stress risers, maintaining core integrity under repeated cycles and preventing thermal fatigue in demanding conditions.
Optimized Cooling Performance
A wide core design with extra rows boosts coolant flow and disperses heat faster than standard units. This spreads thermal load over a large area, reducing hotspots and keeping engine temperatures within safe limits even under heavy towing or spirited driving. Precision welding at each joint allows coolant to reach every channel, improving boiling resistance while lowering the risk of cavitation. Consistent flow paths also enhance performance in stop and go traffic.
Built for Endurance and Service
Handcrafted in the USA, this radiator resists corrosion thanks to its pure aluminum composition. Its robust seam welds eliminate internal restrictors, easing routine flushes and inspections. Common maintenance tasks can be performed without special adapters, simplifying coolant changes and leak checks. The durable finish resists road debris and chemical attack for years of consistent use in street or track settings, and it withstands electrochemical degradation in mixed-metal environments.
Seamless MuscleRods Integration
Engineered to align with MuscleRods mounts, this unit ensures proper engine placement and correct drivetrain angles. No additional frame brackets are required, as the mounting ears match the original Chevy 1955 to 1957 footprint exactly. Fitment is confirmed for LS and LT powerplants in manual transmission setups only, eliminating uncertainty during installation. This precision match-up keeps the cooling system true to factory geometry, preserves front end balance, and reduces installation time.
To complete your cooling solution for LS and LT engine swaps, consider our 1955-1957 Chevy Radiator (Manual Transmission) with Fan as the same radiator but with fan functionality.