Performance Radiator for Buick Roadmaster (1994-1996) 5.7L Automatic
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High-Efficiency 3-Row Aluminum Performance Radiator for 1994-1996 Buick Roadmaster
Direct-Fit Cooling Upgrade: Replaces failure-prone factory plastic-tank units with a heavy-duty, all-aluminum 3-row crossflow heat exchanger designed to stabilize coolant temperatures in high-thermal-load LT1 V8 applications.
The Stock Roadmaster Thermal Breakdown
Factory GM B-body radiators utilize stamped aluminum cores crimped to composite nylon end tanks. Over repeated thermal cycles, the factory rubber tank gaskets harden, micro-fracture, and blow out under standard operating pressures. Furthermore, the single-row factory core struggles to shed heat when the 5.7L LT1 operates under heavy load or extended stop-and-go driving, leading to thermal soak and elevated transmission fluid temperatures.
The Engineering Solution
This drop-in performance unit features aircraft-grade T-6061 aluminum construction with 100% TIG-welded end tanks, eliminating mechanical crimp seals entirely. The high-density 3-row crossflow racing core increases surface contact area and fluid volume for superior heat transfer. It incorporates internal heavy-duty brass transmission and engine oil coolers on dedicated ports, maintaining factory fluid line routing while preventing cross-contamination and overheating.
Technical Specifications
| Fitment | 1994-1996 Buick Roadmaster 5.7L Automatic |
| Engine / Chassis | 5.7L LT1 V8 / GM B-Body |
| Stock Output | 260 hp / 335 lb-ft (Approx) |
| Core Dimensions | 30-1/2 in W x 17 in H (3-Row Core) |
| Overall Dimensions | 36 in W x 18-5/8 in H |
| Inlet / Outlet | 1-1/2 in Driver / 1-1/2 in Passenger |
| Part / OEM Numbers | DPI 1516, CU1516, 52467761, 52470704, 52471414, 52473177 |
Compatibility
- 1994 Buick Roadmaster Base / Limited Sedan 5.7L V8 Automatic
- 1994 Buick Roadmaster Estate Wagon 5.7L V8 Automatic
- 1995 Buick Roadmaster Base / Limited Sedan 5.7L V8 Automatic
- 1995 Buick Roadmaster Estate Wagon 5.7L V8 Automatic
- 1996 Buick Roadmaster Base / Limited / Collector's Edition Sedan 5.7L V8 Automatic
- 1996 Buick Roadmaster Estate Wagon 5.7L V8 Automatic
The Buick Heavy-Duty Caliber
Engineered to handle high-demand towing, long-distance touring, and modified small-block setups, this cooling assembly ensures maximum reliability and consistent powertrain temperatures across all driving conditions.
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