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Dimensions and capacities are in inches unless otherwise specified.
| Powertrain
/ Chassis |
Ecotec
2.2L
I-4 (L61) |
3400
3.4L
V-6 (LA1) |
3400
3.4L V-6
(LA1) with Ram Air |
| Application |
standard on SE/SE1 models |
available on SE1, standard on SE2 models
|
standard on GT models |
| Type |
2.2-L I-4 |
3.4L V-6 |
3.4L V-6 |
| Displacement (cu in / cc) |
134 / 2189 |
207 / 3350 |
207 / 3350 |
| Bore & stroke (in / mm) |
3.39 x 3.72 / 86 x 94.6 |
3.62 x 3.31 / 92 x 84 |
3.62 x 3.31 / 92 x 84 |
| Block material |
cast aluminum |
cast iron |
cast iron |
| Cylinder head material |
cast aluminum |
aluminum |
aluminum |
| Valvetrain |
DOHC, 4 valves per cylinder |
OHV, 2 valves per cylinder |
OHV, 2 valves per cylinder |
| Ignition system |
electronic |
electronic |
electronic |
| Fuel delivery |
sequential-port fuel injection |
sequential-port fuel injection |
sequential-port fuel injection |
| Compression ratio |
10.0:1 |
9.5:1 |
9.5:1 |
| Horsepower (hp / kw @ rpm) |
140 / 104 @ 5600 |
170 / 127 @ 4800 |
175 / 130 @ 4800 |
| Torque (lb-ft / Nm @ rpm) |
150 / 203 @ 4000 |
200 / 271 @ 4000 |
205 / 278 @ 4000 |
| Recommended fuel |
87 octane |
87 octane |
87 octane |
| Maximum engine speed (rpm) |
6500 |
6000 |
6000 |
| Emissions controls |
evaporative system with catalytic converter |
catalytic converter/EGR |
catalytic converter/EGR |
Estimated fuel economy
(mpg city / hwy / combined) |
4-spd auto: 24 / 32 / 28
5-spd man: 25 / 33 / 29 |
20 / 29 / 24 |
20 / 29 / 24 |
| Transmission |
M86 |
Hydra-Matic
4T40-E |
Hydra-Matic
4T45-E |
| Type |
5-speed manual
|
4-speed electronic automatic
|
4-speed electronic automatic
|
| Gear Ratios (:1) |
| 1st |
3.58
|
2.96
|
2.96
|
| 2nd |
2.02
|
1.62
|
1.62
|
| 3rd |
1.35
|
1.00
|
1.00
|
| 4th |
0.98
|
0.68
|
0.68
|
| |
0.68
|
-
|
-
|
| Reverse |
-
|
2.14
|
2.14
|
| Final drive ratio |
3.94:1
|
3.91:1
|
3.05:1 / 3.29:1
|
| Chassis
/ Suspension |
SE |
GT |
| Front |
MacPherson struts with lower control
arms 29 Nm spring 24-mm hollow stabilizer bar |
MacPherson struts with lower control
arms 29 Nm spring 24-mm hollow stabilizer bar |
| Rear |
tri-link independent
17.5 Nm spring 15.3-mm solid stabilizer bar MacPherson struts |
tri-link independent
17.5 Nm spring 15.3-mm solid stabilizer bar MacPherson struts |
| Steering type |
rack and pinion, power assisted |
c-spring EVO variable effort (standard
6-cylinder engine) |
| Steering ratio |
14.7:1 |
14.7:1 |
Steering wheel turns,
lock-to-lock |
2.5 |
2.5 |
| Turning circle, curb-to-curb (ft / m) |
35.1 / 10.7 |
35.7 / 10.9 |
| Brakes |
SE |
GT |
| Type |
power-assisted vented |
power-assisted vented |
| front disc / rear drums |
front / rear discs |
| ABS std on SE2, optional on SE and SE1 |
4-wheel ABS |
| Rotor diameter (in / mm) |
front: 10.9 / 278 |
front: 10.9 / 278 |
| rear: 7.87 / 200 |
rear: N/A |
| Wheels and Tires |
SE |
SE1/SE2 |
GT |
| Wheel size & type |
| 15-inch custom bolt-on wheel
covers |
15-inch twin 5-spoke aluminum/16-inch
5-spoke chrome tech |
16-inch 5-spoke torqued cast aluminum |
| opt: 16-inch 5-spoke chrome tech |
opt: 16-inch 5-spoke torqued chrome tech
|
| Tires |
P205/65R15
touring blackwalls |
P205/65R15 touring blackwalls |
P225/50R16
performance blackwalls |
| opt: P225/50R16 touring
blackwalls |
| Exterior
Dimensions |
SE Sedan |
GT Coupe and
Sedan |
| Wheelbase (in / mm) |
107.2 / 2718 |
107.2 / 2718 |
| Overall length (in / mm) |
186.3 / 4372 |
186.3 / 4372 |
| Overall width (in / mm) |
70.4 / 1788 |
70.4 / 1788 |
| Overall height (in / mm) |
55.1 / 1400 |
55.1 / 1400 |
| Track (in / mm) |
front |
59 / 1499 |
59 / 1499 |
| rear |
59.1 / 1501 |
59.1 / 1501 |
| Curb weight (lb / kg) |
SE |
3066 / 1393 |
3116 / 1416 |
| GT |
3099 / 1409 |
3118 / 1417 |
| Interior
Dimensions |
Coupe |
Sedan |
| Seating capacity (front / rear) |
2 / 3 |
2 / 3 |
| Head room (in / mm) |
Front |
38.3 / 972.8 |
38.3 / 972.8 |
| Rear |
37.3 / 944.9 |
37.6 / 955 |
| Leg room (in / mm) |
Front |
42.1 / 1069 |
42.1 / 1069 |
| Rear |
35.5 / 901.7 |
35.5 / 901.7 |
Shoulder room
(in / mm) |
Front |
53.7 / 1364 |
53.6 / 1361 |
| Rear |
55 / 1397 |
52.8 / 1341 |
| Hip room (in / mm) |
Front |
52.4 / 1331 |
52.6 / 1336 |
| Rear |
49.3 / 1252 |
52.4 / 1331 |
| Capacities |
2008 Pontiac
Grand Am |
EPA passenger volume
index (cu ft / L) |
Coupe |
92.2 / 2611 |
| Sedan |
90.1 / 2551 |
EPA interior volume index
(cu ft / L) |
Coupe |
107.3 / 3038 |
| Sedan |
105.4 / 2985 |
| Cargo volume (cu ft / L) |
14.6 / 413.4 |
| Fuel tank (gal / L) |
14.1 / 54.1 |
| Engine oil (qt / L) |
I-4 |
4 / 3.8 |
| 3400 V-6 |
4.5 / 4.3 |
| Cooling system (qt / L) |
I-4 |
10 / 9.5 |
| 3400 V-6 |
12.5 / 11.8 |
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