2002 Pontiac Grand Prix

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Engines

Transmission

3.1-liter V6

3.8-liter V6

3.8-liter Supercharged V6

4T65E
4-spd auto

SE

Standard

–

–

Standard

GT

–

Standard

–

Standard

GTP

–

–

Standard

Standard

3.1L (LG8) 3100 V6

3.8L (L36) V6 3800 Series II

3.8L (L67) V6 3800 Supercharged Series II

Application:

standard on SE Sedan

standard on GT

standard on GTP

Type:

3.1-liter OHV V6

3.8-liter OHV V6

3.8-liter supercharged V6

Block material:

cast iron

cast iron

cast iron

Displacement (cu in / cc):

191 / 3136

231 / 3791

231 / 3791

Bore x stroke (in / mm):

3.51 x 3.31 / 89.0 x 84.0

3.80 x 3.40 / 96.52 x 86.36

3.80 x 3.40 / 96.52 x 86.36

Cylinder head material:

cast aluminum

cast iron

cast iron

Valvetrain:

overhead valve, two/cyl.

overhead valve, two/cyl.

overhead valve, two/cyl.

Ignition system:

electronic control module with three integral coils and one remote timing sensor

electronic

electronic

Fuel delivery:

sequential-port fuel injection

sequential-port fuel injection

sequential-port fuel injection

Compression ratio:

9.6:1

9.4:1

8.5:1

Horsepower (hp / kw @ rpm):

175 / 130 @ 5200

200 / 149 @ 5200

240 / 179 @ 5200

Torque (lb-ft / Nm @ rpm):

195 / 264 @ 4000

225 / 305 @ 4000

280 / 380 @ 3600

Recommended fuel:

87 octane

87 octane

92 octane

Maximum engine speed (rpm):

6000

6000

6000

Emission control system:

catalytic converter/EGR

catalytic converter/EGR

catalytic converter/EGR

Type:

4T65-E 4-speed electronic automatic FWD transverse

Application:

standard with 3100, 3800 Series II and Supercharged 3800 engines

Gear ratios (:1):

First:

2.92

Second:

1.57

Third:

1.00

Fourth:

0.71

Reverse:

2.39

Final drive ratio:

3100 & 3800 Series II: 3.29:1; Supercharged 3800: 2.93:1

Estimated fuel economy
(mpg city / hwy / combined):

Estimated cruising range
(city / hwy):

3100 & 3800 Series II: 350 / 525
Supercharged 3800: 306 / 476

Front:

MacPherson struts with coil springs, lower A-arm,
30-mm hollow anti-roll bar

Rear:

independent, tri-link coil over strut, 18-mm anti-roll bar

Steering type:

low friction rack and pinion, power assisted

Ratio:

17.6:1

Steering wheel turns,
lock-to-lock:

2.26

Turning circle, curb-to-curb
(ft / m):

36.9 / 11.2

Optional:

MagnaSteer variable effort steering

Front:

10.9-inch (276.9 mm) vented discs, power assisted

Rear:

10.9-inch (276.9 mm) solid discs, power assisted, standard ABS

SE

GT

GTP

Standard wheels:

15-inch steel sport wheel with bolt-on cover

16-inch three-spoke styled cast aluminum

16-inch three-spoke styled cast aluminum

Optional wheels:

16-inch five-blade cast aluminum

16-inch three-spoke cast aluminum polished silver

16-inch three-spoke cast aluminum polished silver

16-inch five-spoke cast aluminum

16-inch five-spoke cast aluminum

16-inch five-spoke cast aluminum

—

16-inch five-spoke cast aluminum polished silver

16-inch five-spoke cast aluminum polished silver

Standard with 40th Anniversary package:

—

16-inch aluminum with chrome finish

16-inch aluminum with chrome finish

Standard tires:

P205/70R15 blackwall touring

P225/60R16 blackwall

P225/60R16 black performance

Optional tire:

P225/60R16 blackwall

—

—

SE

GT

GTP

Wheelbase (in / mm):

110.5 / 2806.7

110.5 / 2806.7

110.5 / 2806.7

Overall length (in / mm):

197.5 / 5016.5

197.5 / 5016.5

197.5 / 5016.5

Overall width (in / mm):

72.7 / 1846.6

72.7 / 1846.6

72.7 / 1846.6

Overall height (in / mm):

54.7 / 1389.4

54.7 / 1389.4

54.7 / 1389.4

Track (in / mm):

Front:

61.7 / 1567.2

61.7 / 1567.2

61.7 / 1567.2

Rear:

61.1 / 1551.9

61.1 / 1551.9

61.1 / 1551.9

Curb weight (lbs / kg):

3384 / 1535

coupe: 3429 / 1555

coupe: 3495 / 1585

sedan: 3496 / 1586

sedan: 3559 / 1614

Weight distribution (front / rear):

65 / 35

65 / 35

65 / 35

Coupe

Sedan

Seating capacity (front / rear):

2 / 3

2 / 3

Head room (in / mm):

front: 38.3 / 972.8
rear: 36.5 / 927.1

front: 38.3 / 972.8
rear: 36.7 / 932.2

Leg room (in / mm):

front: 42.4 / 1077
rear: 36.1 / 916.9

front: 42.4 / 1077
rear: 35.8 / 909.3

Shoulder room (in / mm):

front: 58.5 / 1486
rear: 57.9 / 1470.7

front: 58.5 / 1486
rear: 57.2 / 1452.9

Hip room (in / mm):

front: 55.7 / 1415
rear: 54.3 / 1379.2

front: 55.7 / 1415
rear: 54.3 / 1379.2

Interior volume (cu ft / liters):

115 / 3256

Cargo volume (cu ft / liters):

16 / 453

Trailer towing maximum
(lbs / kg):

1000 / 454
(not recommended with supercharged engine)

Fuel tank (gal / liters):

17.5 / 66.2

Engine oil and filter (qts / liters):

3.1L engine: 4.0 / 3.8
3.8L engine: 5.0 / 4.7

Cooling system (qts / liters):

3.1L engine: 11.6 / 11.0
3.8L engine: 12.3 / 11.6