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2003 Pontiac Grand Prix - Specs

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2003 Pontiac Grand Prix

2003 Pontiac Grand Prix - Review
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2003 Pontiac Reviews

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Visit Pontiac for more information on the Pontiac Grand Prix.

Grand Prix - Engine Specs
Grand Prix - Transmission Specs

Grand Prix - Chassis / Suspension
Grand Prix - Exterior Dimensions

Grand Prix - Interior Dimensions
Grand Prix - Capacities


Model Lineup

Engines

Transmission

3100
3.1L V6

3800 3.8L
Series II V6

3800 SC 3.8L Supercharged Series II V6

4-spd auto (Hydra-Matic 4T65-E)

SE

Standard

-

-

Standard

GT

-

Standard

-

Standard

GTP

-

-

Standard

Standard


Engine

3100 3.1L V6 (LG8)

3800 3.8L Series II V6 (L36)

3800 SC 3.8L Supercharged Series II V6 (L67)

Application
standard on SE Sedan
standard on GT
standard on GTP
Type
3.1-liter V6
3.8-liter V6
3.8-liter supercharged V6
Displacement (cu in / cc)
191 / 3136
231 / 3791
231 / 3791
Bore & stroke (in / mm)
3.51 x 3.31 / 89 x 84
3.80 x 3.40 / 96.52 x 86.36
3.80 x 3.40 / 96.52 x 86.36
Block material
cast iron
cast iron
cast iron
Cylinder head material
cast aluminum
cast iron
cast iron
Valvetrain
OHV, two valves per cylinder
OHV, two valves per cylinder
OHV, two valves per cylinder
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
Emissions controls
catalytic converter/EGR
catalytic converter/EGR
catalytic converter/EGR
Estimated fuel economy
(mpg city / hwy / comb.)
20 / 30 / 24
20 / 30 / 24
18 / 28 / 22

Transmission

2003 Pontiac Grand Prix

Type:
Hydra-Matic 4T65-E 4-speed electronic automatic FWD transverse
Gear ratios (:1):
   1st
2.92
   2nd
1.57
   3rd
1.00
   4th
0.71
 Reverse
2.39
Final drive ratio
3100 & 3800 Series II: 3.29
Supercharged 3800: 2.93

Chassis Suspension

2003 Pontiac Grand Prix

Front
MacPherson struts with coil springs, lower A-arm, 30mm hollow anti-roll bar
Rear independent, tri-link coil over strut, 18mm anti-roll bar
Steering type
Low friction rack and pinion, power assisted (MagnaSteer on GTP models)
Steering ratio
17.6:1
Steering wheel turns, lock-to-lock
2.26
Turning circle, curb-to-curb (ft / m)
36.9 / 11.2

Brakes

2003 Pontiac Grand Prix

Type
4-wheel ABS (standard on GTP)
front: vented discs, power assisted
rear: solid discs, power assisted
Rotor diameter (in / mm)
front: 10.9 / 277; 10.9 / 277

Wheels / Tires

SE

GT

GTP

Standard wheels
15-inch steel sport wheel w/ bolt-on cover
16-inch five-spoke styled cast aluminum
16-inch five-spoke styled cast aluminum
Optional wheels
16-inch five-blade cast aluminum  
16-inch three-spoke cast aluminum polished
16-inch three-spoke cast aluminum polished
16-inch three-spoke cast aluminum
16-inch five-spoke cast aluminum polished 
16-inch five-spoke cast aluminum polished
Standard tires
P205/70R15 blackwall touring
P225/60R16 blackwall
P225/60R16 blackwall performance
Optional tires
P225/60R16 blackwall
-
-

Exterior Dimensions

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
front: 61.7 / 1567.2
front: 61.7 / 1567.2
rear: 61.1 / 1551.9
rear: 61.1 / 1551.9
rear: 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

Interior Dimensions

Front

Rear

Seating capacity
2
3
Head room (in / mm)
38.3 / 972.8
36.7 / 932.2
Leg room (in / mm)
42.4 / 1077
35.8 / 909.3
Shoulder room (in / mm)
58.5 / 1486
57.2 / 1452.9
Hip room (in / mm)
55.7 / 1415
54.3 / 1379.2

Capacities

2003 Pontiac Grand Prix

EPA 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 (gals / liters)
17.5 / 66.2
Engine oil (qts / liters)
3.1L engine: 4 / 3.8
3.8L engine: 5 / 4.7
Cooling system (qts / liters)
3.1L engine: 11.6 / 11
3.8L engine: 12.3 / 11.6