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Buick GSX 455

(1970 model)

Brief specs of 1970 Buick GSX 455

2-door 5-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 7466 cm3 / 455.6 cu in / 455.6 cu in, 261.0 kW / 350.0 hp / 350.0 hp @ 4600 rpm / 4600 rpm / 4600 rpm, 691.0 N·m / 509.7 lb·ft / 509.7 lb·ft @ 2800 rpm / 2800 rpm / 2800 rpm, manual 4-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)BuickIssued from1970
ModelGSX 455Issued until
SerieGSNumber made
Model familyBody construction
Model codeBody designation
ManufacturerBuickCountryUS

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length5131 mm / 202.0 in / 202.0 inTotal (curb) weight1757 kg / 3874 lb / 3874 lb
Width1963 mm / 77.3 in / 77.3 inDry weight
Height1346 mm / 53.0 in / 53.0 inLoad capacity
Wheelbase2845 mm / 112.0 in / 112.0 inGross (max.) weight
Track front1527 mm / 60.1 in / 60.1 inTowing weight
Track rear1499 mm / 59.0 in / 59.0 inWeight distribution (front)
Ground clearance163 mm / 6.4 in / 6.4 inFuel capacity76 l / 16.7 UK gal / 20.0 US gal
Length/wheelbase ratio1.8  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.25 m2 / 24.2 sq ft / 24.2 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine Total number of valves16
Engine ManufacturerGMValves per cylinder2
Engine constructionBore109.5 mm / 4.31 in / 4.31 in
Fuelpetrol (gasoline)Stroke99.1 mm / 3.90 in / 3.90 in
Fuel detailsBore/Stroke ratio1.1
Fuel supply1 Ro carbEngine displacement7466 cm3 / 455.6 cu in / 455.6 cu in
Engine Main bearings5Unitary capacity933.25 cm3/cylinder / 56.950 cu in/cylinder / 56.950 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio10.0 : 1
SumpMax. output power261.0 kW / 350.0 hp / 350.0 hp at 4600 rpm / 4600 rpm / 4600 rpm
AspirationnaturalMax. torque691.0 N·m / 509.7 lb·ft / 509.7 lb·ft at 2800 rpm / 2800 rpm / 2800 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)104.4 kW / 140.0 hp / 140.0 hp (est.)
CoolantwaterSpecific output35.0 kW/l / 0.768 bhp/cu in / 0.768 bhp/cu in
Catalytic converternoSpecific torque92.5 N·m/l / 0.81 lb·ft/cu in / 0.81 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.42

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio199.2 kW/ton / 150.9 bhp/ton / 150.9 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lock5.6Turning circle
Suspension frontIndependent, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front7.00 x 15Wheels rear7.00 x 15
Tyres frontG60-15Tyres rearG60-15
Brakes frontventilated discBrakes reardrum
Brake diameter front279 mm / 11.0 in / 11.0 inBrake diameter rear229 mm / 9.0 in / 9.0 in
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Buick GSX 455

Infobox

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