Infiniti QX56 2011-2013 5.6L V8 Engine Specifications
Detailed technical specifications and comprehensive guide for the 5.6L V8 engine in the 2011-2013 Infiniti QX56. Includes horsepower, torque, maintenance tips, and performance upgrades for optimal engine performance.
Overview Specifications
This document provides detailed technical specifications and operational information for the 5.6L V8 engine used in the 2011-2013 Infiniti QX56. It is designed to assist automotive enthusiasts, technicians, and owners in understanding the engine's features, performance capabilities, and maintenance requirements. The content is organized into sections for easy navigation, with quick reference points for key specifications.
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Key Specifications
Engine Type
5.6L V8
Horsepower
400 hp @ 5,800 rpm
Torque
413 lb-ft @ 4,000 rpm
Fuel Type
Premium Unleaded
Compression Ratio
10.3:1
Available Specifications
Engine Specifications
This section covers the fundamental specifications of the 5.6L V8 engine, including its displacement, cylinder configuration, and key technical details. It provides a comprehensive overview of the engine's design and architecture.
Engine Specifications
This section covers the fundamental specifications of the 5.6L V8 engine, including its displacement, cylinder configuration, and key technical details. It provides a comprehensive overview of the engine's design and architecture.
General Specifications
- Engine Type: 5.6L V8
- Displacement: 5,552 cc
- Cylinder Configuration: V8
- Valvetrain: DOHC with VVEL
- Bore x Stroke: 98.0 mm x 92.0 mm
Performance Metrics
- Horsepower: 400 hp @ 5,800 rpm
- Torque: 413 lb-ft @ 4,000 rpm
- Compression Ratio: 10.3:1
- Fuel Type: Premium Unleaded
- Fuel System: Direct Injection
Engine Features
This section highlights the advanced features and technologies incorporated into the 5.6L V8 engine, focusing on its efficiency, performance, and reliability enhancements.
Engine Features
This section highlights the advanced features and technologies incorporated into the 5.6L V8 engine, focusing on its efficiency, performance, and reliability enhancements.
Advanced Technologies
- Variable Valve Event and Lift (VVEL) system
- Direct Injection Gasoline (DIG) technology
- Dual Overhead Camshafts (DOHC)
- Aluminum Block and Heads
- Hydraulic Lash Adjusters
Efficiency Enhancements
- Improved fuel economy with Direct Injection
- Reduced emissions with advanced combustion system
- Lightweight engine components for better efficiency
- Optimized airflow with variable intake manifold
- Enhanced cooling system for consistent performance
Maintenance and Service
This section provides essential information on maintaining and servicing the 5.6L V8 engine, including recommended service intervals and key maintenance tips.
Maintenance and Service
This section provides essential information on maintaining and servicing the 5.6L V8 engine, including recommended service intervals and key maintenance tips.
Service Intervals
- Oil Change: Every 5,000 miles or 6 months
- Air Filter Replacement: Every 15,000 miles
- Spark Plug Replacement: Every 60,000 miles
- Coolant Flush: Every 30,000 miles
- Timing Chain Inspection: Every 100,000 miles
Maintenance Tips
- Use only recommended oil viscosity (5W-30)
- Check engine oil level regularly
- Inspect belts and hoses for wear and tear
- Keep the cooling system clean and functional
- Follow the manufacturer's service schedule
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Engine Specifications
Overview
- Type
- Naturally aspirated V8
- Configuration
- 90-degree V8
- Displacement
- 5.6 liters (5552 cc)
- Assembly Location
- Yokohama, Japan
- Engine Code
- VK56VD
Dimensions
- Length
- 28.7 inches (729 mm)
- Width
- 26.8 inches (681 mm)
- Height
- 27.6 inches (701 mm)
- Weight
- 472 lbs (214 kg)
- Bore
- 3.78 inches (96 mm)
- Stroke
- 3.70 inches (94 mm)
- Compression Ratio
- 10.8:1
Materials
- Block
- Cast aluminum with cast-in iron liners
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Hollow sodium-filled
Features
- Fuel System
-
- Direct injection
- Variable pressure fuel pump
- Multi-hole injectors
- Valvetrain
-
- Dual overhead camshafts (DOHC)
- Variable Valve Event and Lift (VVEL)
- Hydraulic lash adjusters
- Timing chain
- Cooling
-
- Liquid-cooled
- Dual thermostats
- High-capacity radiator
- Electric cooling fan
- Lubrication
-
- Wet sump system
- High-volume oil pump
- Oil cooler
- Full-flow filtration
- Emissions
-
- Dual catalytic converters
- EGR system
- Oxygen sensors
- Evaporative emissions control
Safety Features
- Engine Protection
-
- Knock sensor system
- Low oil pressure warning
- Overheat protection
- Fail-Safes
-
- Limp-home mode
- Fuel cut-off during high RPM
- Coolant temperature monitoring
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Precision-balanced rotating assembly
- Vibration Reduction
-
- Harmonic balancer
- Isolated fuel rail
- Tuned intake manifold
Accessories
- Standard
-
- Accessory drive belt with tensioner
- High-output alternator
- Starter motor with heat shield
- Optional
-
- Heavy-duty cooling package
- Engine block heater
- Remote start system
Maintenance
- Service interval
- 7500 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Timing chain inspection
- Coolant flush and replace
- Notes
- Use 5W-30 synthetic oil, replace spark plugs every 105,000 miles
Warranty
- Basic
- Years: 4Miles: 60000Coverage: Bumper-to-bumper
- Powertrain
- Years: 6Miles: 70000Coverage: Engine and transmission
- Corrosion
- Years: 7Miles: UnlimitedCoverage: Perforation only
- Emissions
- Years: 8Miles: 80000Coverage: Federal emissions components
Production Details
- Manufacturer
- Nissan Motors
- Manufacturing Process
-
- Precision casting
- CNC machining
- Automated assembly
- Laser measurement
- Quality Control
- Testing: Cold and hot testing, Leak testing, Performance verificationTolerances: Micron-level precisioninspection Points: 127
- Sustainability
-
- Recycled aluminum content
- Closed-loop water system
- Low-VOC coatings
- Production Metrics
- Daily Output: 150Defect Rate: 0.03%Energy Efficiency: 15% improvement over previous generation
Service Information for 5.6l v8 engine Service
Maintenance and service requirements specific to the 5.6L V8 engine
- Oil and filter change
- Air filter inspection
- Belts and hoses inspection
- Coolant level check
- Engine diagnostic scan
Use only synthetic 5W-30 oil meeting API SN standard
- Fuel system cleaning
- PCV valve inspection
- Throttle body cleaning
- Ignition system check
- Coolant system pressure test
Inspect for oil leaks and clean engine surface
- Spark plug replacement
- Engine mounts inspection
- Timing chain inspection
- Full cooling system flush
- Compression test
Consider valve adjustment inspection at this interval
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 5.6L V8 engine compatible with other Infiniti models?
Is the 5.6L V8 engine compatible with other Infiniti models?
The 5.6L V8 engine is specifically designed for the 2011-2013 Infiniti QX56. While it shares some similarities with engines in other Infiniti or Nissan models, direct compatibility is not guaranteed. Always verify with a certified technician or refer to the vehicle’s service manual before attempting any swaps or modifications.
Q2 What are the maintenance requirements for the 5.6L V8 engine?
What are the maintenance requirements for the 5.6L V8 engine?
Regular maintenance for the 5.6L V8 engine includes oil changes every 5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 60,000 miles. Additionally, coolant should be flushed every 30,000 miles, and the timing chain should be inspected every 100,000 miles. Following these guidelines ensures optimal performance and longevity.
Q3 How do I replace the 5.6L V8 engine in my Infiniti QX56?
How do I replace the 5.6L V8 engine in my Infiniti QX56?
Replacing the 5.6L V8 engine requires professional expertise. Key steps include disconnecting the battery, draining fluids, removing engine mounts, and detaching electrical connections. The new engine must be aligned properly and reconnected to all systems. It’s highly recommended to consult the service manual or hire a certified technician for this complex procedure.
Q4 What should I do if my 5.6L V8 engine is overheating?
What should I do if my 5.6L V8 engine is overheating?
If your engine is overheating, first check the coolant level and ensure there are no leaks. Inspect the radiator, thermostat, and water pump for functionality. If the issue persists, it could be due to a failing head gasket or blocked coolant passages. Immediate professional diagnosis is recommended to prevent severe engine damage.
Q5 How can I optimize the performance of my 5.6L V8 engine?
How can I optimize the performance of my 5.6L V8 engine?
To optimize performance, use high-quality synthetic oil, ensure proper tire inflation, and keep the air intake system clean. Regularly inspect and replace worn-out components like spark plugs and fuel injectors. Consider upgrading the exhaust system for better airflow and performance tuning for enhanced power output.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2011-2013 Infiniti QX56 Service Manual
Coming SoonDetailed service manual covering maintenance, repairs, and technical specifications for the 2011-2013 Infiniti QX56 and its 5.6L V8 engine.
Technical Service Bulletin for 5.6L V8 Engine
Coming SoonLatest updates and fixes for the 5.6L V8 engine, addressing common issues and providing solutions for Infiniti QX56 owners.
Infiniti QX56 Parts and Accessories Catalog
Coming SoonComprehensive catalog of OEM parts and accessories for the 2011-2013 Infiniti QX56, including engine components and performance upgrades.
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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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