LL8 Vortec 4200

Рядний 6-циліндровий двигун з високою потужністю та надійністю, розроблений для великих автомобілів.

Brand: Buick Type: Petrol Configuration: Inline-6 Production Years: 2002 - 2009 Production: Flint, Michigan, USA
16 Brand engines
14 Modifications

Technical Specifications

Engine Displacement 4.2 L (4,195 cc)
Configuration Inline-6
Number of Cylinders 6
Valves per Cylinder 4
Power 270 - 291 л.с.
Torque 362 - 373 Н*м
Cylinder Bore 93.00 mm
Piston Stroke 102.00 mm
Compression Ratio 10.0:1
Firing Order 1-5-3-6-2-4
Fuel System Multi-point fuel injection
Aspiration Naturally Aspirated
Intercooler No
Maximum RPM 6,000 rpm
Max Torque RPM 3,600 rpm
Valve Train DOHC
Timing Drive Chain
Timing Chain Replacement 250000 or as needed
Block Material Aluminum
Head Material Aluminum
Lubrication System Pressure lubrication
Cooling System Liquid cooling

Additional Information

Engine Family Vortec
Manufacturing Plant Flint, Michigan, USA

Maintenance

Engine Oil Capacity 6.5 L (with filter: 7 L)
Recommended Viscosity 5W-30
Oil Standard API SM
Recommended Brands ACDelco, Mobil 1, Valvoline
Oil Change Interval 12 000 km or 12 mo
Oil Filter PF61
Air Filter A1618C
Replace every 48 000 km
Spark Plugs Type: Iridium
Part number: 41-103
Gap: 1 mm
Quantity: 6 pcs
Replace every 160 000 km
Coolant Capacity 13.5 L
Coolant Type DEX-COOL (ACDelco)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 87°C
Operating Temperature 90°C
Max Operating Temperature 110°C
Critical Temperature 120°C
Annual Maintenance Cost 500-800 USD

Reliability

Reliability rating: 8/10

Expected lifespan: 300 000 km

Common problems

Problem Severity Mileage Repair cost
Camshaft actuator failure Medium 100000-150000 km $500-1000
Cooling fan clutch failure Medium 80000-120000 km $300-600

Known defects

  • Early models had issues with cylinder liners
  • Crankshaft position sensor failures

Tuning potential

Tuning potential: Low | Max. safe power: 300 hp

Stage Power Torque Method Cost
Stage 1 285 hp 390 Nm ECU remap only
Reliability impact: Minimal 		$400
Stage 3 370 hp 460 Nm - -

Popular modifications

  • Cold air intake
  • Performance exhaust system

Tuning limitations

  • Limited aftermarket support
  • Naturally aspirated limits power gains

Детальні технічні характеристики

2
модифікацій
279–295
к.с.

Спільні характеристики

Acceleration (0-100 km/h) 8.2 s
Back suspension Dependent, pneumatic element
Back track width 1577 mm
Body type Crossover
Boost type none
Capacity 4157 cm3
Car class J
City driving fuel consumption per 100 km 14.7 l
Clearance 200 mm
Compression ratio 10.3
Country USA
Curb weight 2065 kg
Cylinder bore 93.0 mm
Cylinder layout inline
Engine code LL8
Engine model LL8
Engine placement Front, longitudinal
Engine type Gasoline
Front brakes Disc
Front suspension Independent, spring
Front track width 1603 mm
Fuel 92
Fuel tank capacity 83 l
Full weight 2517 kg
Height 1895 mm
Highway driving fuel consumption per 100 km 11.2 l
Injection type distributed injection (multipoint)
Length 4871 mm
Max speed 175 km/h
Max trunk capacity 2268 l
Min trunk capacity 1127 l
Number of cylinders 6
Number of doors 5
Number of gear 4
Number of seater 5
Rear brakes Disc
Steering wheel position Left
Stroke cycle 102.0 mm
Timing belt DOHC
Valves per cylinder 4
Wheelbase 2869 mm
Width 1895 mm

Модифікації двигуна

4.2 AT RWD (279 hp)
Привід Rear wheel drive КПП Automatic Rainier 1 2003–2007
279 hp
engine
Engine power 279 hp
Max power (kW) 205 kW
Max power at RPM 6000 RPM
Maximum torque 373 N*m
Turnover of maximum torque 3600 RPM
transmission
Drive wheels Rear wheel drive
Gearbox type Automatic
4.2 AT RWD (295 hp)
Привід Rear wheel drive КПП Automatic Rainier 1 2003–2007
295 hp
engine
Engine power 295 hp
Max power (kW) 217 kW
Max power at RPM 6000 RPM
Maximum torque 375 N*m
Turnover of maximum torque 4800 RPM
transmission
Drive wheels Rear wheel drive
Gearbox type Automatic

Cars with the LL8 engine

This engine was fitted to 6 models

Photo Brand Model Generation Production years
No photo
 Buick Rainier Rainier 2003 - 2007
No photo
 Chevrolet TrailBlazer TrailBlazer 2002 - 2009
No photo
 GMC Envoy Envoy 2001 - 2009
No photo
 Isuzu Ascender Ascender 2002 - 2008
No photo
 Saab 9-7X 9-7x 2005 - 2009
No photo
 Oldsmobile Bravada Bravada (GMT360) 2002 - 2004

All modifications (14)

Vehicle Generation Modification Power Gearbox Drive
Buick Rainier Rainier Buick Rainier 4.2 V6 275 л.с. 4-Автомат 2WD 275 hp 4-Автомат 2WD
Buick Rainier Rainier Buick Rainier 4.2 V6 275 л.с. 4-Автомат 4x4 275 hp 4-Автомат 4x4
Chevrolet TrailBlazer TrailBlazer 4.2 V6 275 л.с. 4-ступ. Автомат 2WD 275 hp 4-ступ. Автомат 2WD
Chevrolet TrailBlazer TrailBlazer 4.2 V6 275 л.с. 4-ступ. Автомат 4x4 275 hp 4-ступ. Автомат 4x4
GMC Envoy Envoy 4.2L V8 275 л.с. 4-ступ. Автомат 2WD 275 hp 4-ступ. Автомат 2WD
GMC Envoy Envoy 4.2L V8 275 л.с. 4-ступ. Автомат 4x4 275 hp 4-ступ. Автомат 4x4
GMC Envoy Envoy 4.2L V8 300 л.с. 6-ступ. Автомат 2WD 300 hp 6-ступ. Автомат 2WD
GMC Envoy Envoy 4.2L V8 300 л.с. 6-ступ. Автомат 4x4 300 hp 6-ступ. Автомат 4x4
Isuzu Ascender Ascender Isuzu Ascender 4.2L V6 280 л.с. 4-ступ. автомат 2WD 280 hp 4-ступ. автомат 2WD
Isuzu Ascender Ascender Isuzu Ascender 4.2L V6 280 л.с. 4-ступ. автомат 4x4 280 hp 4-ступ. автомат 4x4
Saab 9-7X 9-7x 4.2 V8 300 л.с. 4-Автомат 4x4 300 hp 4-Автомат 4x4
Saab 9-7X 9-7x 4.2 V8 300 л.с. 5-Автомат 4x4 300 hp 5-Автомат 4x4
Oldsmobile Bravada Bravada (GMT360) 4.2 V8 275 л.с. 4-Автомат 4x4 275 hp 4-Автомат 4x4
Oldsmobile Bravada Bravada (GMT360) 4.2 V8 275 л.с. 5-Автомат 4x4 275 hp 5-Автомат 4x4

Interesting Facts

  • The LL8 was the first inline-6 engine for GM since the 1980s.
  • It featured variable valve timing (VVT) on both intake and exhaust cams.

Applications

Total produced: unknown

Vehicle Generation Years Power Markets
Buick Rainier GMT360 2004-2007 275hp USA
Chevrolet TrailBlazer GMT360 2002-2009 270hp/291hp USA

Compatible transmissions: 4-speed Automatic, 5-speed Automatic

Drive types: RWD, AWD

Fuel Economy

Fuel Type Petrol 95
Octane Rating Minimum: 87 | Recommended: 91
Consumption (City) 15.7 L/100km
Consumption (Highway) 11.2 L/100km
Consumption (Combined) 13.5 L/100km
Real Consumption 14.5 L/100km
Fuel Tank Capacity 83 L
Range 615 km
Cost per 100 km 15-20 USD

Emissions Standards

Emission Standard Euro 4
CO₂ Emissions 280 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Awards and Recognition

  • Ward's 10 Best Engines (2002) — Best New Engine

Comparison with competitors

Engine Brand Displacement Power Torque
1GR-FE Toyota 3,956 cc 236 hp 361 Nm

Pros

  • Smooth power delivery
  • Strong mid-range torque
  • Advanced for its time with DOHC and VVT

Cons

  • High fuel consumption
  • Limited tuning potential
  • Some reliability concerns with early models