Key facts

1970 Buick GSX 455, 1970 MY information summary

What body style?
fixed-head coupé with 4/5 seats
How long?
5131 mm
How heavy?
1757 kg
What size engine?
7.5 litre, 7466 cm3
How many cylinders?
8, V
How much power?
355 PS / 350 bhp / 261 kW @ 4600 rpm
How much torque?
691 Nm / 510 ft.lb / 70.5 kgm @ 2800 rpm

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1970 Buick GSX 455 technical specifications

Introduction

The Buick GSX 455 is a 2 door coupé style road car with a front positioned engine powering the rear wheels.
Power is produced by an overhead valve, 7.5 litre naturally aspirated 8 cylinder motor, with 2 valves per cylinder that develops power and torque figures of 350 bhp (355 PS/261 kW) at 4600 rpm and 691 N·m (510 lb·ft/70.5 kgm) at 2800 rpm respectively.
This power is transferred to the wheels through a 4 speed manual transmission.
The Buick GSX 455 weighs a quoted 1757 kg at the kerb.
1970 Buick GSX 455 data
1970 Buick GSX 455, 1970 MY data
bodywork
Body type4/5 seater fixed-head coupé
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 2845 112
Track/tread (front) 1527 60.1
Track/tread (rear) 1499 59
Length 5131 202
Width 1963 77.3
Height 1346 53
Ground clearance 163 6.4
length:wheelbase ratio 1.8
Kerb weight 1757 kg 3874 lb
Weight distribution
fuel tank capacity 75.8 litres 16.7 UK Gal 20 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer GM
Engine code
Cylinders V 8 in 90° vee
Capacity 7.5 litre
7466 cc
(455.603 cu in)
Bore × Stroke 109.5 × 99.1 mm
4.31 × 3.9 in
Bore/stroke ratio 1.1
overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output 355 PS (350 bhp) (261 kW)
at 4600 rpm
Specific output 46.9 bhp/litre
0.77 bhp/cu in
maximum torque 691 Nm (510 ft·lb) (70.5 kgm)
at 2800 rpm
Specific torque 92.55 Nm/litre
1.12 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 10:1
Fuel system 1 Rochester Quadrajet carburettor
bmep (brake mean effective pressure) 1163.1 kPa (168.7 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 933.25 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
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 201.97 PS/g
148.55 kW/g
199.2 bhp/ton
0.09 bhp/lb
Weight-to-power ratio 6.73 kg/kW
11.24 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per 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 5.600
Turning circle
Front suspension I.CS.ARB.
Rear suspension LA.CS.ARB.
Wheel size front 7.00 x 15
Wheel size rear 7.00 x 15
Tyres front G60-15
Tyres rear G60-15
Brakes F/R VeDi/Dr-S
Front brake diameter 279 mm
Rear brake diameter 229 mm
Gearbox 4 speed manual
Top gear ratio 1.00
Final drive ratio 3.42
general
Carfolio.com ID140976
Production total
Model code
Model family
RAC rating 59.5
Insurance classification No information available
Tax band No information available
1970 Buick GSX 455 added 2006-05-31.
Last modified 2013-02-28.

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1970 Buick GSX 455


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