Aluminum Radiator with Shroud for Oldsmobile Cutlass Supreme (1980-1987) 3.8L 4.3L

High-Efficiency 4-Row Aluminum Radiator and Shroud Kit for 1980-1987 Oldsmobile Cutlass Supreme

What it Does: Replaces the deteriorating factory copper-brass or crimped-tank radiator with a high-capacity, TIG-welded 4-row aluminum core and electric fan kit to eliminate coolant thermal runaway under load.

The Stock Cutlass Supreme Thermal Bottleneck

Factory 1980-1987 G-body cooling assemblies relied on restrictive, narrow-tube copper-brass cores or mechanically crimped plastic tanks prone to embrittlement, seam separation, and internal scale buildup. Decades of heat cycles cause core clogging and degraded heat transfer, while the original engine-driven mechanical clutch fans generate parasitic drag and fail to pull adequate CFM at low-RPM idle or during sustained summer traffic, inducing severe heat soak.

The Engineering Solution

This cooling upgrade features an all-aluminum construction utilizing 100% TIG-welded end tanks and vacuum-brazed multi-louvered cooling fins. By pairing a high-capacity 4-row core with a custom-contoured aluminum shroud and dedicated electric puller fan, the assembly maximizes thermal dissipation area and optimizes air velocity across the entire core face. Eliminating failure-prone gasketed plastic tanks ensures zero leak paths, maintaining lower coolant delta temps even under aggressive operating conditions.

Technical Specifications

Compatibility

• 1980-1987 Oldsmobile Cutlass Supreme: 3.8L (231 cu in) V6
• 1980-1987 Oldsmobile Cutlass Supreme: 4.3L (262 cu in) V6

The Oldsmobile Classic Muscle Standard

Keep your G-body cruising without temperature spikes. Engineered for classic American cruiser reliability, this bolt-in aluminum assembly stabilizes operating temperatures to safeguard your engine block and preserve classic cruiser performance.