Home > Pontiac > Pontiac G8 > 2009 Pontiac G8 > 2009 Pontiac G8 Specifications
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SPECIFICATIONS
ENGINES
Type:
3,564cc V6; aluminum block and heads
Valvetrain: DOHC 4-valves/cyl.
Power [hp at rpm]: 256 at 6,300
Torque [lb-ft at rpm]: 248 at 2,100
Bore & Stroke [mm]: 94.0 x 85.6
Compression Ratio: 10.2:1
Redline: 6,900
Mileage City / Hwy [mpg]: 17 / 25
Available with: Base
 
Type:
5,967cc V8; aluminum block and heads
Valvetrain: OHV 2-valves/cyl.
Power [hp at rpm]: 361 at 5,300
Torque [lb-ft at rpm]: 385 at 4,400
Bore & Stroke [mm]: 101.3 x 92.0
Compression Ratio: 10.4:1
Redline: 6,000
Mileage City / Hwy [mpg]: 15 / 24
Available with: GT
 
Type:
6,162cc V8; aluminum block and heads
Valvetrain: OHV 2-valves/cyl.
Power [hp at rpm]: 402 at 6,000
Torque [lb-ft at rpm]: 402 at 4,400
Bore & Stroke [mm]: 103.25 x 92.0
Compression Ratio: 10.7:1
Redline: 6,600
Mileage City / Hwy [mpg]: 13 / 20
Available with: GXP
 
TRANSMISSIONS
Type:
5-speed automatic
Ratios: 3.42, 2.21, 1.60, 1.00, 0.75
Final Drive: 2.92
Available with: V6
 
Type:
6-speed automatic
Ratios: 4.03, 2.36, 1.53, 1.15, 0.85
Final Drive: 2.92; 3.27 (GXP)
Available with: GT; GXP
 
Type:
6-speed manual
Ratios: 3.01, 2.07, 1.43, 1.00, 0.84, 0.57
Final Drive: 3.70
Available with: GXP
 
LAYOUT
Engine position:
Front-engine
Driveline:
Rear-wheel-drive
 
SUSPENSION
Front:
MacPherson struts; coil springs, anti-roll bar
Rear:
Four-link; coil springs, anti-roll bar
 
BRAKES
Front:
11.7 x 1.2 in. power-assisted vented discs
12.6 x 1.2 in. power-assisted vented discs (GT)
14.0 x 1.3 in. power-assisted vented discs (GXP)
Rear:
12.6 x 0.9 in. power-assisted vented discs
12.8 x 0.9 in. power-assisted vented discs (GT; GXP)
 
WEIGHT & CAPACITIES
Curb weight [lbs]:
3,885
3,995 (GT)
4,050 (GXP)
Max. towing capacity [lbs]: 2,000
1,000 (GXP)
Fuel Capacity [gal.]: 19.2
 
STEERING
Type:
Rack & Pinion; power-assist
Turning Circle [ft.]
37.4
 
EXTERIOR DIMENSIONS
Length [in.]:
196.1
Width [in.]:
74.8
Height [in.]:
57.7
Wheelbase [in.]: 114.8
Front Track [in.]: 62.7
Rear Track [in.]: 63.3
 
INTERIOR DIMENSIONS
Pass. Vol. [cu-ft]:
124.5
Seating Capacity:
5
 
Front Headroom [in.]:
38.7
Rear Headroom [in.]: 38.0
 
Front Legroom [in.]:
42.2
Rear Legroom [in.]: 39.4
 
Front Shoulderroom [in.]:
59.1
Rear Shoulderroom [in.]: 59.1
 
Front Hiproom [in.]:
56.7
Rear Hiproom [in.]: 58.0
 
Cargo Cap. [cu-ft]:
17.5
 
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