| Engine |
Vortec 2200 L4 |
Vortec 4300 V6 |
| Displacement (cu. in./liters) |
134/2.2 |
262/4.3 |
| Bore & stroke (in./mm) |
3.50 x 3.46/89 x 88 |
4.00 x 3.48/102 x 88 |
| Compression ratio |
9.0:1 |
9.2:1 |
| Cylinder block material |
cast-iron |
cast-iron |
| Cylinder head material |
cast-aluminum |
cast-iron |
| Valve configuration |
OHV |
OHV |
| Valves/cylinder |
2 |
2 |
| Ignition system |
direct |
direct |
| Lifters |
hydraulic roller |
hydraulic roller |
| Cam drive |
chain |
chain |
| Coolant capacity (quarts/liters) |
| — manual transmission |
11.5/11.0 |
11.9/11.3 |
| — automatic transmission |
11.5/11.0 |
11.7/11.1 |
| Oil capacity (quarts/liters) |
4.5/4.3 |
4.5/4.3 |
| Alternator rating (amps) |
100 |
100 |
| Battery (SAE rating, cca) |
525 |
525 |
| Recommended unleaded fuel |
87 octane |
87 octane |
| Maximum engine speed (RPM) |
6000 |
5600 |
| Horsepower/kW (@ engine RPM) |
120/89 @ 5000 |
180/134 @ 4400 (2WD) |
| |
190/142 @ 4400 (4x4) |
| Torque (lb.-ft./N-m @ RPM) |
140/190 @ 3600 |
245/332 @ 2800 (2WD) |
| |
250/339 @ 2800 (4x4) |
