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Pontiac GTO 455

(1970 model)

Brief specs of 1970 Pontiac GTO 455

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 7462 cm3 / 455.4 cu in / 455.4 cu in, 268.5 kW / 360.1 hp / 360.1 hp @ 4300 rpm / 4300 rpm / 4300 rpm, 678.0 N·m / 500.1 lb·ft / 500.1 lb·ft @ 2700 rpm / 2700 rpm / 2700 rpm, manual 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1970
ModelGTO 455Issued until
SerieGTONumber made
Model familyBody construction
Model codeBody designation
ManufacturerPontiacCountryUS

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)5760 l / 203.41 cu ft / 203.41 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length5154 mm / 202.9 in / 202.9 inTotal (curb) weight1715 kg / 3781 lb / 3781 lb
Width1948 mm / 76.7 in / 76.7 inDry weight
Height1329 mm / 52.3 in / 52.3 inLoad capacity
Wheelbase2845 mm / 112.0 in / 112.0 inGross (max.) weight
Track front1549 mm / 61.0 in / 61.0 inTowing weight
Track rear1524 mm / 60.0 in / 60.0 inWeight distribution (front)
Ground clearanceFuel capacity68 l / 14.9 UK gal / 17.9 US gal
Length/wheelbase ratio1.81  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.20 m2 / 23.7 sq ft / 23.7 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 (V8)Total number of valves16
Engine ManufacturerGMValves per cylinder2
Engine constructionBore105.4 mm / 4.15 in / 4.15 in
Fuelpetrol (gasoline)Stroke106.9 mm / 4.21 in / 4.21 in
Fuel detailsBore/Stroke ratio0.99
Fuel supply1 carbEngine displacement7462 cm3 / 455.4 cu in / 455.4 cu in
Engine Main bearings5Unitary capacity932.75 cm3/cylinder / 56.920 cu in/cylinder / 56.920 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio10.2 : 1
SumpwetMax. output power268.5 kW / 360.1 hp / 360.1 hp at 4300 rpm / 4300 rpm / 4300 rpm
AspirationnaturalMax. torque678.0 N·m / 500.1 lb·ft / 500.1 lb·ft at 2700 rpm / 2700 rpm / 2700 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)107.4 kW / 144.0 hp / 144.0 hp (est.)
CoolantwaterSpecific output36.0 kW/l / 0.791 bhp/cu in / 0.791 bhp/cu in
Catalytic converternoSpecific torque90.9 N·m/l / 0.79 lb·ft/cu in / 0.79 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.31

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio209.9 kW/ton / 159.0 bhp/ton / 159.0 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-lockTurning circle12.0 m / 39.4 ft / 39.4 ft
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres frontG78 x 14Tyres rearG78 x 14
Brakes frontdrumBrakes reardrum
Brake diameter front241 mm / 9.5 in / 9.5 inBrake diameter rear241 mm / 9.5 in / 9.5 in
Brakes detailsBraked area

Technical specifications and performance data of Pontiac GTO 455

Infobox

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