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2009 Pontiac G8 - Specs
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2009 Pontiac G8

2009 Pontiac G8 - Review
2009 Pontiac G8 - Photos
2009 Pontiac Reviews
2009 Pontiac G8 - Price Quote

Visit Pontiac for more information on the Pontiac G8.

Engine Specs
Transmission Specs
Exterior Dimensions
Interior Dimensions
Capacities


Dimensions and capacities are in inches unless otherwise specified.

Model Lineup  Engines Transmissions
3.6L V6 with VVT  6.0L V8 with AFM 6.2L V8 5L40 5-speed automatic 6L80 6-speed automatic TR6060 6-speed manual
G8 Standard - - Standard - -
G8 GT - Standard - - Standard -
G8 GXP
 - - Standard - Standard Manual

Engines 3.6L V6 (LY7) 6.0L V8 (L76) 6.2L V8 (LS3)
Application G8 G8 GT G8 GXP
Type 3.6L V6 6.0L V8 6.2L V8
Displacement (cu in / cc) 217 / 3564 364 / 5967 376 / 6162
Bore & stroke (in / mm) 3.70 x 3.37 / 94 x 85.6 3.99 x 3.62 / 101.3 x 92 4.06 x 3.62 / 103.25 x 92
Block material cast aluminum w/ cast-in-place iron bore liners cast aluminum w/ cast-in-place iron bore liners cast aluminum w/ cast-in-place iron bore liners
Cylinder head material aluminum aluminum aluminum
Valvetrain dual overhead camshafts, 4 valves per cylinder, continuously variable valve timing valve-in-head; 2 valves per cylinder; roller lifters; Active Fuel Management valve-in-head; 2 valves per cylinder; roller lifters
Ignition system electronic individual coil-on-plug; individual cylinder knock control and extended-life platinum-tipped spark plugs high-energy distributorless ignition; solid state direct-fire ignition w/ coil near plug and integrated ignition high-energy distributorless ignition; solid state direct-fire ignition w/ coil near plug and integrated ignition
Fuel delivery returnless, multi-port fuel injection returnless, multi-port fuel injection returnless, multi-port fuel injection
Compression ratio 10.2:1 10.4:1 10.7:1
Horsepower (hp / kw @ rpm) 256 / 190 @ 6300 rpm 361 / 268 @ 5300 402 / 300 @ 6000
Torque (lb-ft / Nm @ rpm) 248 / 336 @ 2100 rpm 385 / 520 @ 4400 402 / 546 @ 4400 (est. w/ auto. trans.)
400 / 546 @ 4400 (est. w/ man. trans.)
Recommended fuel regular unleaded regular unleaded premium unleaded
Max engine speed (fuel cut-off) 6900 6000 6600
Emissions controls evaporative system, single close-coupled catalytic converter, equal-length exhaust, single underfloor catalytic converter, positive crankcase ventilation, intake and exhaust cam phasers, electronic throttle control evaporative system, close-coupled catalytic converters, positive crankcase ventilation, electronic throttle control evaporative system, close-coupled catalytic converters, positive crankcase ventilation, electronic throttle control
Estimated fuel economy (city / hwy) 17 / 25 15 / 24 TBD

Transmission Hydra-Matic 5L40 5-speed automatic Hydra-Matic 6L80 6-speed automatic TR6060 6-speed manual
Gear ratios (:1):
     1st 3.42 4.03 3.01
     2nd 2.21 2.36 2.07
     3rd 1.60 1.53 1.43
     4th 1.00 1.15 1.00
     5th 0.75 0.85 0.84
     6th - 0.67 0.57
   Reverse 3.02 3.06 3.28
Final Drive Ratio 2.92 2.92 (GT) 3.70 (GXP)
3.27 (GXP)

Chassis / Suspension 2009 Pontiac G8
Front multi-link MacPherson strut; direct-acting stabilizer bar; progressive-rate coil springs; fully adjustable camber, caster and toe
Rear four-link independent; progressive-rate coil springs over shocks; stabilizer bar; fully adjustable camber and toe
Steering Type variable-ratio rack-and-pinion
Steering Ratio 46-53 mm per revolution
Steering wheel turns,
lock-to-lock		 2.8
Turning circle,
curb-to-curb (ft / m)		 37.4 / 11.4

Brakes 2009 Pontiac G8
Front four-wheel disc w/ ABS; ventilated front and rear rotors; twin-piston front calipers (four-piston on GXP); single piston alloy rear calipers
Rotor diameter, front (in / mm)
G8
 11.73 / 298
G8 GT
 12.64 / 321
G8 GXP
 14 / 355
Rotor diameter, rear (in / mm) G8 11.89 / 302
G8 GT 12.76 / 324
G8 GXP 12.76 / 324
Rotor thickness, front (in / mm) G8 1.18 / 30
G8 GT 1.18 / 30
G8 GXP 1.26 / 32
Rotor thickness, rear (in / mm) 0.86 / 22 (all models)

Wheels / Tires G8 G8 GT G8 GXP
Wheel size and type 18 x 8-inch painted aluminum 18 x 8-inch painted aluminum (std)
 19 x 8-inch polished aluminum with machined face
19 x 8-inch painted aluminum (opt)
Tires P245/45R18 all-season (summer tires opt.) P245/45R18 summer (std.)
P245/45R18 all-season (opt)
P245/40R19 (opt)		 P245/40R19 summer (std.); P245/40R19 all-season (opt)

Dimensions Exterior 2009 Pontiac G8
Wheelbase (in / mm) 114.8 / 2915
Overall length (in / mm) 196.1 / 4982
Overall width (in / mm) 74.8 / 1899
Overall height (in / mm) 57.7 / 1465
Track (in / mm) Front 62.7 / 1592
Rear 63.3 / 1608
Curb weight (lb / kg) Base 3885 / 1762
GT 3995 / 1812
GXP 4050 / 1837

Interior Front Rear
Seating capacity (front / rear) 2 3
Headroom (in / mm) 38.7 / 989 38 / 965
Legroom (in / mm) 42.2 / 1071 39.4 / 1001
Shoulder room (in / mm) 59.1 / 1501 59.1 / 1500
Hip room (in / mm) 56.7 / 1439 58 / 1472

Capacities 2009 Pontiac G8
EPA interior volume (cu ft / L) 124.5 / 3528
Cargo volume (cu ft / L) 17.5 / 496
Passenger Volume (cu ft / L)
G8 and G8 GT
 2000 / 907
G8 GXP
 1000 / 454
Fuel tank (gal / L) 19.2 / 72.6
Passenger Volume (cu ft / L)
3.6L
 7.6 / 7.2
6.0L
 8.9 / 8.5
6.2L
 8.9 / 8.5
Fuel tank (gal / L)
3.6L
 10.8 / 10.2
6.0L
 11.4 / 10.8
6.2L
 11.3 / 10.7

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