Dimensions and capacities are in inches unless otherwise
specified.
| Powertrain
/ Chassis |
3400
3.4L V-6 (LA1) |
3800
3.8L Series II V-6 (L36) |
3800
3.8L Supercharged Series II V-6 (L67) |
| Application |
sedan |
opt on sedan
std on LS |
SS |
| Type |
3.4L V-6 |
3.8L V-6 |
3.8L Supercharged V-6 |
| Displacement (cu in / cc) |
207 / 3350 |
231 / 3791 |
231 / 3791 |
| Bore & stroke (in / mm) |
3.62 x 3.31 / 92 x 84 |
3.80 x 3.40 / 96.5 x 86.4 |
3.80 x 3.40 / 96.5 x 86.4 |
| Block material |
cast iron |
cast iron |
cast iron |
| Cylinder head material |
cast aluminum |
cast iron |
cast iron |
| Valvetrain |
OHV, 2 valves per cylinder |
OHV, 2 valves per cylinder |
OHV, 2 valves per cylinder |
| Ignition system |
direct |
direct |
direct |
| Fuel delivery |
sequential fuel injection |
sequential fuel injection |
sequential fuel injection |
| Compression ratio |
9.5:1 |
9.4:1 |
8.5:1 |
| Horsepower (hp / kw @ rpm) |
180 / 134 @ 5200 |
200 / 149 @ 5200 |
240 / 179 @ 5200 |
| Torque (lb-ft / Nm @ rpm) |
205 / 278 @ 4000 |
225 / 305 @ 4000 |
280 / 380 @ 3600 |
| Recommended fuel |
87 octane |
87 octane |
92 octane required |
| Maximum engine speed (rpm) |
6000 |
6000 |
6000 |
| Emissions controls |
evaporative system with
catalytic converter/ EGR/PCV |
evaporative system with
catalytic converter/ EGR/PCV |
evaporative system with
catalytic converter/ EGR/PCV |
Estimated fuel economy
(mpg city / hwy / combined) |
21 / 32 / 26 |
20 / 30 / 25 |
18 / 28 / 22.5 |
| MPIG (city / hwy / combined) |
25 / 42 / 31 |
24 / 39 / 29 |
21 / 34 / 25 |
| L/100km (city / hwy / combined) |
11.1 / 6.8 / 9.2 |
11.9 / 7.3 / 9.8 |
13.4 / 8.2 / 11.1 |
| Chassis
/ Suspension |
2005
Chevrolet Impala |
| Front |
independent MacPherson
struts, variable rate coil springs,
hollow 32-mm stabilizer bar (SS has hollow 34-mm stabilizer
bar) |
Rear
|
independent
MacPherson struts, non-linear coil springs, solid 14-mm
stabilizer bar (SS has dual rate coil springs, hollow
19.5-mm stabilizer bar) |
| Steering type |
power rack-and-pinion for
all models |
| Steering ratio |
3400 V-6:
15.2:1; 3800 V-6: 13.2:1 |
| Steering wheel turns, lock-to-lock |
3400 V-6: 2.74; 3800 V-6:
2.38; supercharged: 2.30 |
| Turning diameter, curb-to-curb
(ft / m) |
3400 V-6,
3800 V-6: 38 / 11.6; supercharged: 39.6 / 12.1 |
| Wheels
and Tires |
2005
Chevrolet Impala |
| Wheel size and type |
Sedan |
Standard - 16-inch, steel
wheel w/ wheel cover |
| Optional - 16-inch custom
aluminum wheel |
| LS |
Standard - 16-inch, 5-spoke
aluminum wheel |
| Optional - 16-inch diamond-cut
aluminum |
| SS |
Standard - 17-inch, diamond-cut
aluminum |
| Optional - 17-inch chromed
diamond-cut aluminum |
| Tires |
Sedan |
Standard
- P225/60R16 all-season blackwalls |
| Optional
- P225/60R16 touring |
| LS |
P225/60R16
touring |
| SS |
P235/55R17
W-rated |
Car Reviews
2005
Chevrolet Impala - Review
2005
Chevrolet Impala - Price Quote
