Buick Centurion Convertible, 1973 MY 4BP 67

This automobile has a 2 door convertible/cabriolet type body with a front positioned engine driving through the rear wheels. It is part of Buick's 4BP range of cars. It's powered courtesy of a naturally aspirated engine of 7.4 litre capacity. This unit features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It has an output of 250 bhp (253 PS/186 kW) of power at 4000 rpm, and maximum torque of 508 N·m (375 lb·ft/51.8 kgm) at 2800 rpm. A 3 speed automatic gearbox transmits the power to the wheels.

Pictures

Key facts

Buick Centurion Convertible, 1973 MY 4BP 67 information summary

What body style?
2 door convertible/cabriolet with 2+2 seats
How long?
5695 mm
What size engine?
7.4 litre, 7425 cm3
How many cylinders?
8, V
How much power?
253 PS / 250 bhp / 186 kW @ 4000 rpm
How much torque?
508 Nm / 375 ft.lb / 51.8 kgm @ 2800 rpm

Buick 4BP models

2 door convertible/​cabriolet FR 3A 7425 cm3 228 PS 225 bhp 168 kW
2 door convertible/​cabriolet FR 3A 5724 cm3 177 PS 175 bhp 130 kW
2 door fixed-head coupé FR 3A 7425 cm3 228 PS 225 bhp 168 kW
2 door fixed-head coupé FR 3A 7425 cm3 253 PS 250 bhp 186 kW
2 door fixed-head coupé FR 3A 5724 cm3 177 PS 175 bhp 130 kW
4 door sedan/​saloon FR 3A 7425 cm3 228 PS 225 bhp 168 kW
4 door sedan/​saloon FR 3A 5724 cm3 177 PS 175 bhp 130 kW
4 door sedan/​saloon FR 3A 7425 cm3 253 PS 250 bhp 186 kW

Similar models

2 door convertible/​cabriolet FF 3A 8189 cm3 238 PS 235 bhp 175 kW 2231 kg
1973 Buick Centurion Convertible data
bodywork
Body type2+2 seater convertible/cabriolet
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 3150 mm 124 inches
Track/tread (front)
Track/tread (rear)
Length 5695 mm 224.2 inches
Width 2022 mm 79.6 inches
Height 1377 mm 54.2 inches
Ground clearance
length:wheelbase ratio 1.81
Kerb weight
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Buick
Engine code
Cylinders V 8 in 90° vee
Capacity 7.4 litre
7425 cc
(453.101 cu in)
Bore × Stroke 109.22 × 99.06 mm
4.3 × 3.9 in
Bore/stroke ratio 1.1
Valve gear overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output
(net)
253 PS (250 bhp) (186 kW)
at 4000 rpm
Specific output
(net)
33.7 bhp/litre
0.55 bhp/cu in
maximum torque
(net)
508 Nm (375 ft·lb) (51.8 kgm)
at 2800 rpm
Specific torque
(net)
68.42 Nm/litre
0.83 ft·lb/cu3
Engine construction
sump
compression ratio 8.5:1
Fuel system 1 carburettor
bmep (brake mean effective pressure) 859.8 kPa (124.7 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 928.13 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio
Weight-to-power ratio
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front L78-15
Tyres rear L78-15
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox 3 speed automatic
Top gear ratio 1
Final drive ratio 2.73
general
Carfolio.com ID337931
Production total
Model code 67
Model family 4BP
RAC rating 59.2
Insurance classification No information available
Tax band No information available
1973 Buick Centurion Convertible added 2013-06-05.
Last modified 2013-06-05.