Description

Manley Pro Series Turbo Tuff “I” Beam Steel Connecting Rods for Mitsubishi Evo X 4B11T (14409-4)

Firstly, BUY Manley Pro Series Turbo Tuff I-Beam Connecting Rods Evo X 4B11T (14409-4). Upgrade your Mitsubishi Lancer Evolution X engine build with the Manley Pro Series Turbo Tuff “I” Beam Connecting Rods for Evo X 4B11T (14409-4). Designed specifically for the Mitsubishi 4B11T platform, these high-performance connecting rods are engineered for serious turbocharged applications where strength, durability, and precision are essential.

The Manley Pro Series Turbo Tuff I-Beam connecting rods are forged from 4340 aircraft-quality vacuum-degassed steel and manufactured for demanding high-horsepower applications. Manley uses a Turbo Tuff design that combines a strong I-beam construction with carefully controlled dimensions to provide the durability required for aggressive engine builds. The rods are also shot peened after machining and individually magnafluxed to help ensure manufacturing quality.

For Evo X owners building a stronger 4B11T bottom end, upgrading the connecting rods is an important part of creating a reliable performance engine. Factory connecting rods can become a limiting factor as boost, cylinder pressure, RPM, and power levels increase. The Manley 14409-4 rod set provides a proven aftermarket solution for enthusiasts building turbocharged street cars, track cars, drag cars, and high-output Evo X engines.

Why Choose Manley Turbo Tuff Connecting Rods?

Firstly, these rods are built specifically around the Mitsubishi 4B11T engine, with a 5.656-inch center-to-center length, 2.165-inch big-end bore, and 0.9063-inch pin bore. The dimensions are designed around the Evo X 4B11T application rather than being a generic connecting rod adapted to the platform.

Secondly, the rods are manufactured from forged 4340 steel. The material and Turbo Tuff I-beam design are intended for high-power turbo applications, while the post-machining shot peening and individual magnaflux inspection add further quality control to the manufacturing process.

Thirdly, the 14409-4 set uses 3/8-inch ARP 2000 rod bolts and is rated by Manley for an approximate 1,000+ flywheel horsepower range in a four-cylinder application. This should be considered a manufacturer application rating rather than a guarantee of engine power. Actual engine capability depends on the complete rotating assembly, cylinder pressure, tuning, fuel system, turbocharger, RPM, and engine preparation.

Key Features

• Manley Pro Series Turbo Tuff I-Beam connecting rods
• Designed for Mitsubishi Evo X 4B11T
• Part number: 14409-4
• Forged 4340 aircraft-quality vacuum-degassed steel
• Turbo Tuff I-beam design
• Shot peened after machining
• Individually magnafluxed
• 3/8-inch ARP 2000 rod bolts
• 5.656-inch center-to-center length
• 2.165-inch big-end bore
• 0.860-inch big-end width
• 0.9055-inch wrist pin diameter
• 0.9063-inch pin bore
• Set of 4 connecting rods
• Approximate 1,000+ flywheel HP application rating for four-cylinder applications
• Designed for high-horsepower turbocharged and performance engine builds

Specifications

Specification	Details
Manufacturer	Manley Performance
Series	Pro Series I-Beam
Sub-Series	Turbo Tuff
Part Number	14409-4
Engine	Mitsubishi 4B11T
Application	Mitsubishi Lancer Evolution X
Material	Forged 4340 steel
Rod Type	I-Beam
Center-to-Center Length	5.656 in.
Big-End Bore	2.165 in.
Big-End Width	0.860 in.
Wrist Pin Diameter	0.9055 in.
Pin Bore	0.9063 in.
Rod Quantity	4
Rod Bolts	3/8-inch ARP 2000
Approx. HP Rating	1,000+ flywheel HP*

*Manufacturer application rating; actual engine power capability depends on the complete engine combination and build quality.

Mitsubishi Evo X 4B11T Fitment

These Manley connecting rods are designed for the Mitsubishi Lancer Evolution X 4B11T platform. Manley’s catalog identifies part number 14409-4 for the Evo X 4B11T application from 2008 onward, while retailer application listings commonly specify 2008–2015 Evo X models. Always verify your engine configuration and part number before ordering, particularly for modified or stroker 4B11T builds.

Built for High-Power Evo X Engine Builds

The Manley Pro Series Turbo Tuff I-Beam connecting rods Evo X are an excellent choice for an engine being upgraded beyond standard factory specifications. They are particularly suited to turbocharged builds where increased boost and cylinder pressure place greater demands on the rotating assembly.

The 4340 construction provides the foundation for a strong performance bottom end, while the Turbo Tuff I-beam design is engineered specifically for demanding applications. The rods are also manufactured with controlled machining processes, shot peening, and individual magnaflux inspection.

Whether you are assembling a forged 4B11T, upgrading an existing Evo X engine, or preparing a dedicated track or drag build, these rods provide a substantial upgrade over stock-style components.

BUY Manley Pro Series Turbo Tuff I-Beam Connecting Rods Evo X 4B11T (14409-4), Forged 4340 steel rods with 3/8-inch ARP 2000 bolts for high-power builds.

14409-4 vs. 14409R6-4

When purchasing Manley Turbo Tuff rods for the Evo X, make sure you select the correct part number.

The 14409-4 uses 3/8-inch ARP 2000 bolts, while the upgraded 14409R6-4 version uses 3/8-inch ARP 625+ bolts. Both versions share the same basic 5.656-inch length, 2.165-inch big-end bore, and 0.9063-inch pin bore.

This listing is specifically for 14409-4 with ARP 2000 bolts.

Package Includes

• 1 × Set of 4 Manley Pro Series Turbo Tuff I-Beam Connecting Rods
• 3/8-inch ARP 2000 rod bolts
• Manley assembly lubricant, where supplied with the package

Installation & Engine Building

Professional engine-building experience is recommended when installing performance connecting rods. Proper bearing clearances, rod bolt torque, piston-to-wall clearance, crankshaft condition, balancing, and rotating assembly measurements are critical during installation.

The rods should be installed according to Manley’s current assembly instructions and the specifications appropriate for the complete engine combination. For a modified 4B11T, the connecting rods should be selected as part of the overall piston, crankshaft, bearing, and balancing strategy.

Frequently Asked Questions

Are these rods compatible with the Mitsubishi Evo X 4B11T?

Yes. Manley identifies the 14409-4 as a Turbo Tuff I-Beam connecting rod set for the Mitsubishi 4B11T, including the Evo X application.

How many connecting rods are included?

The 14409-4 is supplied as a set of four connecting rods for the four-cylinder 4B11T engine.

What material are the rods made from?

They are forged from 4340 aircraft-quality vacuum-degassed steel. Manley also states that the rods are shot peened after machining and individually magnafluxed.

What horsepower are these rods rated for?

Manley lists an approximate 1,000+ flywheel horsepower range for these 4340 rods in a four-cylinder application. This is an application rating, not a guarantee that every engine using these rods will safely produce that power.

Do these rods use ARP 2000 bolts?

Yes. Part number 14409-4 is supplied with 3/8-inch ARP 2000 rod bolts. The 14409R6-4 is the higher-spec alternative using ARP 625+ fasteners.

Are these OEM Mitsubishi connecting rods?

No. These are Manley aftermarket performance connecting rods, designed as an upgraded component for high-performance 4B11T engine builds.

Why Buy from evomotorparts.com?

At evomotorparts.com, we focus on supplying quality parts for Mitsubishi Evolution enthusiasts and serious performance builds. Our range includes OEM replacement components as well as premium aftermarket engine, drivetrain, suspension, braking, and performance parts.

When you buy Manley performance components from evomotorparts.com, you can shop with confidence knowing that we focus specifically on Mitsubishi Evolution platforms, including the Evo 7, Evo 8, Evo 9, and Evo X.

We offer:

• Quality Mitsubishi Evolution performance parts
• OEM and premium aftermarket components
• Performance-focused 4G63 and 4B11T engine parts
• Competitive pricing
• Worldwide shipping
• Dedicated support for Mitsubishi Evolution enthusiasts

Conclusion

The Manley Pro Series Turbo Tuff “I” Beam Steel Connecting Rods 14409-4 are a serious bottom-end upgrade for the Mitsubishi Evo X 4B11T. With forged 4340 construction, Turbo Tuff I-beam design, 3/8-inch ARP 2000 bolts, precision dimensions, and a manufacturer-stated 1,000+ flywheel HP application range, they are designed for enthusiasts building stronger and more capable turbocharged engines.

If you are planning a high-power Evo X engine build, buy the Manley Pro Series Turbo Tuff I-Beam connecting rod set online from evomotorparts.com and build your 4B11T rotating assembly around proven performance components.

BUY Manley Pro Series Turbo Tuff I-Beam Connecting Rods Evo X 4B11T (14409-4), Forged 4340 steel rods with 3/8-inch ARP 2000 bolts for high-power builds.