LM4 Chevrolet LM4
V8 двигун серії Vortec, відомий своєю надійністю та потужністю, використовується в різних моделях Chevrolet.
60
Brand engines
4
Modifications
Technical Specifications
| Engine Displacement | 5.3 L (5,328 cc) |
| Configuration | V8 |
| Number of Cylinders | 8 |
| Valves per Cylinder | 2 |
| Power | 290 л.с. |
| Torque | 441 Н*м |
| Cylinder Bore | 96.00 mm |
| Piston Stroke | 92.00 mm |
| Compression Ratio | 9.5:1 |
| Firing Order | 1-8-7-2-6-5-4-3 |
| Fuel System | Sequential Fuel Injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 5,600 rpm |
| Max Torque RPM | 4,000 rpm |
| Valve Train | OHV |
| Timing Drive | Chain |
| Timing Chain Replacement | 250000 or as needed |
| Block Material | Aluminum |
| Head Material | Aluminum |
| Engine Weight | 180 kg |
| Dimensions (L×W×H) | null mm |
| Lubrication System | Wet sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | GM LS engine family |
| Manufacturing Plant | Romulus, Michigan, USA |
| Predecessor | LM7 |
| Successor | LH6 |
Maintenance
| Engine Oil Capacity | 5.7 L (with filter: 6 L) |
| Recommended Viscosity | 5W-30 |
| Oil Standard | API SL |
| Recommended Brands | ACDelco, Mobil 1, Valvoline |
| Oil Change Interval | 12 000 km or 12 mo |
| Oil Filter | PF46 |
| Air Filter |
A1618C
Replace every 48 000 km |
| Fuel filter | GF652 |
| Spark Plugs |
Type: Platinum Part number: 41-985Gap: 1.5 mm Quantity: 8 pcs Replace every 160 000 km |
| Coolant Capacity | 12 L |
| Coolant Type | Dex-Cool (ACDelco) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 88°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 110°C |
| Critical Temperature | 120°C |
| Annual Maintenance Cost | 500-800 USD |
Reliability
Expected lifespan: 350 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Intake manifold gasket leaks | Medium | 100000-150000 km | $300-500 |
| Oil consumption issues | High | 150000-200000 km | $500-1000 |
Known defects
- Some models experienced piston slap
- Occasional lifter noise
Tuning potential
Tuning potential: Medium | Max. safe power: 450 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 320 hp | 470 Nm |
ECU remap only Reliability impact: Minimal |
$600 |
| Stage 2 | 350 hp | 500 Nm |
ECU, Впуск, Випуск Required: Cold air intake, Performance exhaust, ECU remap Reliability impact: Low |
$2500 |
| Stage 3 | 400 hp | 550 Nm |
- Required: Upgraded camshaft, High-flow heads, ECU remap Reliability impact: Medium |
$5000 |
Popular modifications
- Cold air intake
- Performance headers
- High-flow catalytic converters
Tuning limitations
- Stock internals limit power gains
- Cooling system upgrades recommended for high power
Cars with the LM4 engine
This engine was fitted to 1 model
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Chevrolet | SSR | SSR | 2003 - 2006 |
All modifications (4)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Chevrolet SSR | SSR | 5.3L V8 300 л.с. 4-Автомат 2WD | 300 hp | 4-Автомат | 2WD |
| Chevrolet SSR | SSR | 5.3L V8 300 л.с. 6-Автомат 2WD | 300 hp | 6-Автомат | 2WD |
| Chevrolet SSR | SSR | 5.3L V8 300 л.с. 4-Автомат 4x4 | 300 hp | 4-Автомат | 4x4 |
| Chevrolet SSR | SSR | 5.3L V8 300 л.с. 6-Автомат 4x4 | 300 hp | 6-Автомат | 4x4 |
Interesting Facts
- The LM4 was one of the first aluminum block V8s in the GM truck lineup.
- It was only produced for two years, making it relatively rare.
Applications
Total produced: unknown
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Chevrolet Trailblazer | GMT360 | 2003-2004 | 290hp | USA, Canada |
| Chevrolet Envoy | GMT360 | 2003-2004 | 290hp | USA, Canada |
Compatible transmissions: 4-speed Automatic 4L60E
Drive types: RWD, AWD
Fuel Economy
| Fuel Type | Petrol 95 |
| Octane Rating | Minimum: 91 | Recommended: 95 |
| Consumption (City) | 15 L/100km |
| Consumption (Highway) | 10 L/100km |
| Consumption (Combined) | 12.5 L/100km |
| Real Consumption | 13.5 L/100km |
| Fuel Tank Capacity | 98 L |
| Range | 784 km |
| Cost per 100 km | 20-25 USD |
Emissions Standards
| Emission Standard | Euro 3 |
| CO₂ Emissions | 320 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| 5.4 Triton | Ford | 5,408 cc | 300 hp | 495 Nm |
| Hemi 5.7 | Dodge | 5,654 cc | 345 hp | 508 Nm |
Pros
- Lighter weight due to aluminum block
- Good power-to-weight ratio
Cons
- Limited production run
- Higher oil consumption compared to some competitors