Ford Duratec I4 and V6 Engines: Specs, Performance, and Price

Ford Duratec engine family, encompassing both inline-4 (I4) and V6 configurations, has been a cornerstone of Ford’s engine lineup for many years.

Known for their reliability, performance, and efficiency, these engines have powered a wide range of vehicles across different markets.

History and Development

The Duratec engine family was introduced in the mid-1990s as part of Ford’s effort to create a new generation of modern, efficient, and versatile powerplants.

The name “Duratec” has been used globally to refer to a range of engines, with the I4 and V6 variants being particularly prominent in Ford’s lineup.

Ford Duratec Engine Design and Features

The Duratec engines feature advanced engineering and technologies aimed at maximizing performance and efficiency. Key design elements include:

Configuration: Inline-4 (I4) and V6
Displacement: Varies across different models (1.8L to 2.5L for I4, 2.5L to 3.7L for V6)
Block and Heads: Aluminum construction for weight reduction and improved cooling
Valvetrain: Dual overhead camshafts (DOHC) with variable valve timing (in some variants)
Fuel System: Multi-point fuel injection or direct injection (in newer models)
Ignition System: Coil-on-plug ignition for precise spark control
Cooling System: Water-cooled for enhanced thermal management

Ford Duratec Engine Specifications

Here are the general specifications for the Ford Duratec I4 and V6 engines:

Specification	Duratec I4	Duratec V6
Manufacturer	Ford Motor Company	Ford Motor Company
Model	Duratec I4	Duratec V6
Configuration	Inline-4	V6
Displacement	1.8L, 2.0L, 2.3L, 2.5L	2.5L, 3.0L, 3.5L, 3.7L
Bore x Stroke	Varies by model	Varies by model
Compression Ratio	9.5:1 to 10.8:1 (varies by model)	9.7:1 to 10.5:1 (varies by model)
Power Output	110 to 200 hp (varies by model)	170 to 305 hp (varies by model)
Torque	125 to 180 lb-ft (varies by model)	165 to 280 lb-ft (varies by model)
Fuel Type	Gasoline	Gasoline
Fuel System	Multi-point fuel injection or direct injection	Multi-point fuel injection or direct injection
Ignition System	Coil-on-plug	Coil-on-plug
Weight	Approximately 250 to 350 lbs	Approximately 350 to 450 lbs

If you are interested you should read about the Best Cars for Big Dog Owners

Ford Duratec Engine Performance and Variants

The Ford Duratec engines have several variants, each tailored to specific performance and operational requirements:

Duratec I4 Variants:

1.8L Duratec I4:
- Power Output: 110 to 125 hp
- Torque: 125 to 130 lb-ft
- Notable Features: Compact size, used in small cars like the Ford Focus
2.0L Duratec I4:
- Power Output: 130 to 160 hp
- Torque: 135 to 145 lb-ft
- Notable Features: Used in models like the Ford Mondeo and Ford Escape
2.3L Duratec I4:
- Power Output: 150 to 175 hp
- Torque: 150 to 170 lb-ft
- Notable Features: Found in vehicles like the Mazda6 and Ford Fusion
2.5L Duratec I4:
- Power Output: 175 to 200 hp
- Torque: 170 to 180 lb-ft
- Notable Features: Used in the Ford Fusion and Mazda CX-7

Duratec V6 Variants:

2.5L Duratec V6:
- Power Output: 170 to 200 hp
- Torque: 165 to 175 lb-ft
- Notable Features: Used in vehicles like the Ford Contour and Mercury Cougar
3.0L Duratec V6:
- Power Output: 200 to 240 hp
- Torque: 180 to 220 lb-ft
- Notable Features: Found in the Ford Escape, Ford Taurus, and Mazda6
3.5L Duratec V6:
- Power Output: 265 to 290 hp
- Torque: 250 to 260 lb-ft
- Notable Features: Used in the Ford Edge and Ford Flex
3.7L Duratec V6:
- Power Output: 273 to 305 hp
- Torque: 260 to 280 lb-ft
- Notable Features: Found in the Ford Mustang and Lincoln MKX

Ford Duratec Engine Applications

The Ford Duratec engines are used in a variety of vehicles, including:

Ford Focus: Compact car with Duratec I4 engines for efficient performance.
Ford Fusion: Mid-sized sedan offering a balance of power and fuel economy with both I4 and V6 options.
Ford Escape: Compact SUV with Duratec I4 and V6 engines for versatile performance.
Mazda6: Mid-sized sedan with Duratec I4 and V6 engines for strong performance.
Ford Edge: Mid-sized SUV with Duratec V6 engines for robust power.
Ford Taurus: Full-sized sedan with Duratec V6 engines for smooth and powerful driving.
Ford Mustang: Sports car with Duratec V6 engines for enhanced performance.

You can get our $30 car maintenance Ebook for FREE now !

I Want It !

Maintenance and Performance Upgrades

Maintaining the Ford Duratec engines involves regular inspections and servicing to ensure longevity and performance. Key maintenance tasks include:

Oil Changes: Regular oil changes are essential for engine health.
Spark Plug Replacement: Ensuring efficient ignition and combustion.
Fuel System Maintenance: Keeping the fuel injection system clean and functional.
Air Filter Replacement: Ensuring optimal airflow and engine performance.
Coolant System Maintenance: Regular checks for leaks and ensuring proper cooling.

For those looking to enhance performance, various aftermarket parts and upgrades are available:

Cold Air Intakes: Improve airflow and increase power output.
Performance Exhaust Systems: Enhance exhaust flow and improve horsepower and torque.
ECU Tuning: Optimize the engine’s performance parameters for greater power and efficiency.
Camshaft Upgrades: Enhance valve timing for improved performance.

Ford Duratec Engine Price

The price of a Ford Duratec engine can vary based on several factors, including whether it is new, rebuilt, or used, and any additional features or modifications: