Infiniti G35 2003-2006 3.5L V6 Engine Engine Specifications
Infiniti G35 2003-2006

Infiniti G35 2003-2006 3.5L V6 Engine Specifications

Explore the detailed 3.5L V6 engine specifications for the 2003-2006 Infiniti G35. Learn about horsepower, torque, fuel system, compression ratio, and engine dimensions. Essential for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.5L V6 engine used in the 2003-2006 Infiniti G35. It is designed to help enthusiasts, mechanics, and owners understand the engine's features, performance, and maintenance requirements. The content is organized into sections for easy navigation, and a quick reference table is included for key specifications. Use the search and navigation instructions to find specific details efficiently.

How to Use

Use the search functionality to quickly locate specific terms or topics within the document. Enter keywords related to the engine, such as 'horsepower' or 'torque,' to find relevant sections.

Navigate through the document using the major sections and subsections. Each section is labeled with a title and contains detailed descriptions and technical points. Use the table of contents or scroll to find the desired information.

Key Specifications

Displacement

3.5 liters

Horsepower

280 HP

Torque

270 lb-ft

Fuel Type

Premium Unleaded

Redline

7000 RPM

Available Specifications

Engine Design and Architecture

This section covers the design and architecture of the 3.5L V6 engine, including its layout, materials, and construction. Learn about the engine's configuration, cylinder arrangement, and key design features that contribute to its performance and durability.

General Design
  • 60-degree V6 configuration
  • Aluminum block and cylinder heads
  • Dual overhead camshafts (DOHC)
  • Four valves per cylinder
  • Nissan VQ series engine family
  • Compact and lightweight design
Construction Materials
  • High-strength aluminum alloy block
  • Forged steel crankshaft
  • Cast aluminum pistons
  • Molybdenum-coated piston rings
  • High-flow intake and exhaust ports

Performance Specifications

Explore the performance capabilities of the 3.5L V6 engine, including horsepower, torque, and acceleration metrics. This section provides detailed information on the engine's power output and how it translates to real-world driving performance.

Power and Torque
  • 280 horsepower @ 6200 RPM
  • 270 lb-ft of torque @ 4800 RPM
  • Redline at 7000 RPM
  • Smooth power delivery across the rev range
  • Optimized for high performance and efficiency
Acceleration and Speed
  • 0-60 mph in 5.8 seconds (manual transmission)
  • Top speed electronically limited to 149 mph
  • Quick throttle response
  • Strong mid-range torque for overtaking
  • Balanced performance for daily driving and spirited driving

Fuel and Emissions

This section focuses on the fuel efficiency and emissions characteristics of the 3.5L V6 engine. Learn about the engine's fuel system, consumption rates, and compliance with emissions standards.

Fuel System
  • Sequential multi-port fuel injection
  • Premium unleaded fuel recommended
  • Fuel tank capacity: 20 gallons
  • Integrated fuel pump and filter
  • Efficient combustion for reduced fuel consumption
Emissions Compliance
  • Meets ULEV (Ultra Low Emission Vehicle) standards
  • Dual catalytic converters
  • OBD-II compliant
  • Low CO2 emissions for its class
  • Advanced engine management system

Engine Specifications

Overview

Type
Naturally Aspirated V6
Configuration
60-degree V6
Platform
VQ35DE
Material
Aluminum Block and Heads
Location
Front Longitudinal

Dimensions

Length
24.5 in (622.3 mm)
Width
27.6 in (701 mm)
Height
28.3 in (718.8 mm)
Displacement
3.5 liters (3498 cc)
Bore
3.76 in (95.5 mm)
Stroke
3.31 in (84 mm)
Weight
366 lbs (166 kg)

Materials

Engine Block
Aluminum Alloy
Cylinder Heads
Aluminum Alloy
Pistons
Forged Aluminum
Crankshaft
Forged Steel
Valves
Stainless Steel

Features

Fuel System
  • Sequential Multi-Port Fuel Injection
  • Electronic Throttle Control
  • Variable Intake Manifold
Ignition System
  • Direct Ignition System
  • Individual Coil-on-Plug
  • Platinum-Tipped Spark Plugs
Cooling System
  • High-Flow Water Pump
  • Dual Thermostats
  • Aluminum Radiator
Emissions
  • EGR System
  • Catalytic Converters
  • OBD-II Compliance
Performance
  • Variable Valve Timing (CVTCS)
  • High-Revving Capability
  • Dual Exhaust System

Safety Features

Engine Protection
  • Knock Sensor
  • Overheat Protection
  • Low Oil Pressure Shutdown
Emissions Control
  • Evaporative Emissions System
  • Secondary Air Injection
  • Catalytic Converter Monitoring

Comfort Features

Noise Reduction
  • Acoustic Engine Covers
  • Hydraulic Engine Mounts
  • Tuned Intake Silencer
Vibration Control
  • Balanced Crankshaft
  • Counter-Rotating Balance Shaft
  • Dual Mass Flywheel

Accessories

Belts Pulleys
  • Serpentine Belt
  • Tensioner Pulley
  • Idler Pulley
Filters
  • Oil Filter
  • Air Filter
  • Fuel Filter
Gaskets Seals
  • Head Gasket
  • Valve Cover Gasket
  • Oil Pan Gasket

Maintenance

Service interval
Every 7,500 miles or 6 months
Service Items
  • Oil and Filter Change
  • Spark Plug Replacement
  • Timing Belt Inspection
  • Coolant Flush
  • Air Filter Replacement
Notes
Use synthetic oil for optimal performance and longevity.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-Bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Engine and Transmission
Emissions
Miles: 80,000
Years: 8
Coverage: Catalytic Converter and Sensors
Corrosion
Miles: Unlimited
Years: 7
Coverage: Perforation from Rust

Production Details

Manufacturer
Nissan Motor Company
Manufacturing Process
  • Casting
  • Machining
  • Assembly
  • Testing
Quality Control
inspection: 100% Engine Testing
Tolerance: Precision Machining
Certification: ISO 9001
Sustainability
  • Recycled Aluminum
  • Low-Emission Manufacturing
  • Energy-Efficient Processes
Production Metrics
Units Per Year: 500,000
Defect Rate: Less than 0.1%
Lead Time: 4 Weeks

Service Information for 3.5l v6 engine Service

Maintenance and service requirements specific to this component

7,500
6
  • Oil and Filter Change
  • Tire Rotation
  • Brake Inspection
  • Fluid Level Check
  • Battery Test

Use synthetic oil for best results.

30,000
24
  • Air Filter Replacement
  • Fuel Filter Replacement
  • Spark Plug Inspection
  • Coolant Flush
  • Transmission Fluid Check

Inspect timing belt for wear.

60,000
48
  • Timing Belt Replacement
  • Water Pump Replacement
  • Serpentine Belt Replacement
  • Ignition Coil Check
  • Exhaust System Inspection

Replace all belts and hoses as preventive maintenance.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.5L V6 engine compatible with other Infiniti models or years?

The 3.5L V6 engine in the 2003-2006 Infiniti G35 is primarily designed for this model and year range. However, it may share compatibility with other Nissan/Infiniti vehicles like the Nissan 350Z due to shared platform and engineering. Always verify with a trusted mechanic or Infiniti dealership before cross-model use, as slight variations in mounting points, electronics, or emissions systems may exist.

Q2

What are the maintenance requirements for the 3.5L V6 engine?

Regular maintenance for the 3.5L V6 engine includes oil changes every 3,000-5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 60,000 miles. Coolant should be flushed every 30,000 miles, and timing belt inspection is recommended every 100,000 miles. Regularly check for oil leaks, as the VQ35DE engine is known for minor seepage over time.

Q3

How do I replace the 3.5L V6 engine in a 2003-2006 Infiniti G35?

Replacing the 3.5L V6 engine involves disconnecting the battery, draining fluids, and removing components like the intake manifold, exhaust headers, and accessories. Use an engine hoist to lift the engine out after disconnecting mounts and wiring. Installation is the reverse process. Ensure proper alignment of components and torque specifications. Professional assistance is recommended due to the complexity of the task.

Q4

What are common issues with the 3.5L V6 engine and how can I troubleshoot them?

Common issues include oil consumption, coil pack failure, and timing chain rattling. For oil consumption, check for leaks and ensure proper oil levels. Coil pack failure can cause misfires; inspect and replace faulty packs. Timing chain rattling may indicate tensioner wear; inspect and replace if necessary. Use an OBD-II scanner to diagnose specific error codes for precise troubleshooting.

Q5

How can I optimize the performance of the 3.5L V6 engine?

To optimize performance, use high-quality synthetic oil and upgrade to performance air filters and exhaust systems. Regular tuning and ECU remapping can enhance horsepower and torque. Ensure proper tire pressure and alignment for better drivability. Avoid aggressive driving to prolong engine life and maintain optimal fuel efficiency. Consider upgrading cooling systems if pushing the engine to its limits.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti G35 Service Manual

Coming Soon

Detailed service manual covering all aspects of the 2003-2006 Infiniti G35, including engine maintenance, repair procedures, and technical specifications.

TSB for Oil Consumption in VQ35DE Engines

Coming Soon

Technical Service Bulletin addressing common oil consumption issues in the VQ35DE engine, with recommended solutions and part updates.

Infiniti G35 Parts Catalog

Coming Soon

Comprehensive catalog of OEM and aftermarket parts for the 2003-2006 Infiniti G35, including engine components, accessories, and maintenance items.

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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.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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