Pontiac Pontiac G8 2008-2009 6.2L V8 Engine Specifications
Explore the detailed 6.2L V8 engine specifications for the 2008-2009 Pontiac G8. This guide covers horsepower, torque, fuel system, and more, providing essential insights for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 6.2L V8 engine used in the 2008-2009 Pontiac G8. It is designed to assist enthusiasts, mechanics, and researchers in understanding the engine's features, performance, and maintenance requirements. The document is organized into sections for easy navigation, with subsections breaking down specific aspects of the engine. Use the search functionality to find specific terms or navigate through sections to explore the engine's details comprehensively.
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Key Specifications
Horsepower
415 hp
Torque
415 lb-ft
Displacement
6.2L
Compression Ratio
10.5:1
0-60 mph
4.7 seconds
Available Specifications
Engine Performance
This section covers the performance characteristics of the 6.2L V8 engine, including horsepower, torque, and acceleration metrics. It also includes details on fuel efficiency and driving dynamics.
Engine Performance
This section covers the performance characteristics of the 6.2L V8 engine, including horsepower, torque, and acceleration metrics. It also includes details on fuel efficiency and driving dynamics.
Power Output
- Horsepower: 415 hp @ 5900 rpm
- Torque: 415 lb-ft @ 4600 rpm
- Compression ratio: 10.5:1
- Redline: 6200 rpm
- Acceleration (0-60 mph): 4.7 seconds
- Top speed: 155 mph (electronically limited)
Fuel Efficiency
- City MPG: 13
- Highway MPG: 20
- Combined MPG: 15
- Fuel tank capacity: 19.1 gallons
- Fuel type: Premium unleaded
- Emissions: Tier 2 Bin 5
Engine Design
This section delves into the design and construction of the 6.2L V8 engine, including its architecture, materials, and key components.
Engine Design
This section delves into the design and construction of the 6.2L V8 engine, including its architecture, materials, and key components.
Architecture
- Engine type: Naturally aspirated V8
- Displacement: 6.2 liters (6162 cc)
- Cylinder arrangement: 90-degree V8
- Valvetrain: Overhead valve (OHV), 2 valves per cylinder
- Bore x Stroke: 4.06 in x 3.62 in
- Block material: Cast aluminum
Key Components
- Cylinder heads: Aluminum
- Pistons: Forged aluminum
- Crankshaft: Forged steel
- Camshaft: Hydraulic roller
- Intake manifold: Composite
- Exhaust system: Dual stainless steel
Maintenance and Durability
This section provides information on maintaining the 6.2L V8 engine, including recommended service intervals, durability features, and common maintenance tasks.
Maintenance and Durability
This section provides information on maintaining the 6.2L V8 engine, including recommended service intervals, durability features, and common maintenance tasks.
Service Intervals
- Oil change: Every 7,500 miles
- Spark plugs: Every 100,000 miles
- Coolant flush: Every 150,000 miles
- Air filter: Every 30,000 miles
- Timing chain: Lifetime (no replacement needed)
- Fuel filter: Every 50,000 miles
Durability Features
- High-strength internals for longevity
- Thermal management system for optimal temperature control
- Corrosion-resistant materials
- Advanced oiling system for high-performance use
- Reinforced engine mounts for stability
- Extended warranty options available
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Engine Specifications
Overview
- Type
- V8
- Configuration
- 90-degree V8
- Displacement
- 6.2L
- Material
- Aluminum block and heads
- Location
- Front, longitudinal
Dimensions
- Length
- 29.5 in (749 mm)
- Width
- 28.7 in (729 mm)
- Height
- 27.6 in (701 mm)
- Weight
- 444 lbs (201 kg)
- Bore
- 4.06 in (103 mm)
- Stroke
- 3.62 in (92 mm)
- Compression Ratio
- 10.5:1
Materials
- Block
- Cast aluminum
- Cylinder Heads
- Aluminum
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Performance
-
- Active Fuel Management
- Variable Valve Timing
- High-flow cylinder heads
- Dual-stage intake manifold
- Fuel System
-
- Sequential fuel injection
- 58 psi fuel pressure
- Returnless fuel system
- Ignition
-
- Coil-near-plug ignition
- Iridium spark plugs
- Knock detection system
- Cooling
-
- High-capacity radiator
- Electric cooling fan
- Coolant recovery system
- Exhaust
-
- Dual exhaust
- Stainless steel headers
- Catalytic converters
Safety Features
- Engine Protection
-
- Oil pressure monitoring
- Coolant temperature sensor
- Low oil level warning
- Emissions
-
- OBD-II compliant
- Evaporative emissions control
- Secondary air injection
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Sound deadening materials
- Vibration Control
-
- Balanced crankshaft
- Dual-mass flywheel
- Harmonic balancer
Accessories
- Belts And Pulleys
-
- Serpentine belt
- Tensioner pulley
- Idler pulley
- Filters
-
- Oil filter
- Air filter
- Fuel filter
- Fluids
-
- Engine oil
- Coolant
- Transmission fluid
Maintenance
- Service interval
-
- Oil change every 5,000 miles
- Air filter replacement every 15,000 miles
- Spark plug replacement every 60,000 miles
- Coolant flush every 100,000 miles
- Timing chain inspection every 120,000 miles
- Maintenance Notes
-
- Use synthetic oil for optimal performance
- Check engine mounts periodically
- Inspect belts and hoses for wear
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper to bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Engine and transmission
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Rust perforation
- Emissions
- Miles: 50,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% engine testingTolerance Checks: Precision measurementLeak Testing: Pressure and vacuum testing
- Sustainability Practices
-
- Recycling of aluminum scrap
- Low-emission paint process
- Energy-efficient manufacturing
- Production Metrics
- Units Per Day: 500Yield Rate: 99.5%Defect Rate: 0.5%
Service Information for 6.2l v8 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect belts and hoses
- Check fluid levels
- Inspect engine mounts
Use synthetic oil for best performance
- Replace air filter
- Inspect spark plugs
- Check ignition system
- Inspect fuel system
Replace spark plugs if necessary
- Replace timing chain
- Flush coolant system
- Inspect and replace gaskets
- Check compression
Consider professional service for major tasks
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 6.2L V8 engine compatible with other Pontiac models?
Is the 6.2L V8 engine compatible with other Pontiac models?
The 6.2L V8 engine in the 2008-2009 Pontiac G8 is specifically designed for this model and may not be directly compatible with other Pontiac vehicles without significant modifications. It features a unique configuration, including a high-output LS3 engine block, which is optimized for the G8's performance and chassis. Always consult a professional or refer to the service manual before attempting cross-model compatibility.
Q2 What are the maintenance requirements for the 6.2L V8 engine?
What are the maintenance requirements for the 6.2L V8 engine?
The 6.2L V8 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000-7,500 miles, air filter replacement every 15,000 miles, and spark plug inspection every 30,000 miles. Additionally, coolant flushes, belt inspections, and fuel system cleanings should be performed as per the manufacturer's schedule. Adhering to these guidelines helps maintain engine longevity and performance.
Q3 How do I replace the 6.2L V8 engine in my Pontiac G8?
How do I replace the 6.2L V8 engine in my Pontiac G8?
Replacing the 6.2L V8 engine involves several steps: disconnect the battery, drain fluids, remove the intake manifold, exhaust system, and accessories, and detach the engine mounts. Use a hoist to lift the engine out. Installation is the reverse process, ensuring all connections are secure and torqued to specifications. Refer to the service manual for detailed instructions and torque values.
Q4 What should I do if my 6.2L V8 engine is misfiring?
What should I do if my 6.2L V8 engine is misfiring?
If your 6.2L V8 engine is misfiring, start by checking the spark plugs, ignition coils, and fuel injectors for wear or damage. Use an OBD-II scanner to identify specific error codes. Inspect the air intake and fuel system for blockages. If the issue persists, consult a professional mechanic to diagnose potential internal engine problems, such as compression loss or timing issues.
Q5 How can I optimize the performance of my 6.2L V8 engine?
How can I optimize the performance of my 6.2L V8 engine?
To optimize performance, consider upgrading the air intake and exhaust systems for better airflow. Use high-performance spark plugs and synthetic oil for improved efficiency. Regularly tune the engine and ensure proper alignment of ignition timing. For advanced gains, explore ECU tuning or aftermarket performance chips. Always balance modifications with proper maintenance to avoid compromising engine reliability.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2008-2009 Pontiac G8 Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for the 6.2L V8 engine and other components.
Technical Service Bulletin: 6.2L V8 Engine Updates
Coming SoonDetails recent updates, recalls, and fixes for the 6.2L V8 engine in the 2008-2009 Pontiac G8.
Pontiac G8 Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts compatible with the 2008-2009 Pontiac G8, including the 6.2L V8 engine.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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