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Bigger and heavier for 1971, Buick's personal luxury coupe also got dramatic new styling - especially at the rear, which gave rise to its 'boat-tail' nickname. Some saw it as the ultimate land yacht, but the GS model's 330 bhp made for fast, executive-style driving.
Specifications:
Engine
Type: V8
Construction: cast-iron block and cylinder heads
Valve gear: 2 valves per cylinder operated by a single camshaft, pushrods and rockers
Bore & Stroke: 4.31in x 3.90in
Displacement: 455 cubic inch
Compression Ratio: 8.5:1
Induction System: Rochester Quadrajet 4-barrel carb
Maximum Power: 330 bhp at 4,600 rpm
Maximum torque: 455 lb-ft at 2,800 rpm
Transmission
GM TurboHydramatic 400 3-speed automatic
Body/Chassis
Steel-perimeter chassis with seperate 2-door coupe body
Running Gear
Steering: Recirculating ball
Front suspension: Unequal-length A-arms with coil springs, telescopic shock absorbers and stabilizer bar
Rear suspension: Live axle with coil springs and telescopic shock absorbers
Brakes: Discs front, Drums rear
Wheels: 7x15 steel
Tires: G70-15in
Dimensions
Length: 217.4 inches
Width: 79.9 inches
Height: 56.4 inches
Wheelbase: 122.0 inches
Track: 60.4 inches
Weight: 4,325 lbs.
Production Years: 1971,1972,1973
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