What material are these connecting rods made from?

These Manley Pro Series connecting rods are forged from 4340 vacuum degassed steel alloy. This material is selected for its excellent strength and durability under high stress.

What is the significance of the ARP 625+ bolts?

ARP 625+ bolts are high-strength fasteners known for their reliability in demanding engine applications. They are designed to withstand the significant clamping forces and stresses experienced in performance engines.

Are these connecting rods balanced?

Connecting rods are typically sold in balanced sets, but for high-performance builds, it is always recommended to have them professionally balanced by a machine shop to ensure optimal engine operation and longevity. Consult your engine builder for specific recommendations.

Specifications

Brand: Manley Performance
Part #: 14321R6-8
UPC: 807298103594

Manley Ford 5.4L Modular V8 6.657in. L w/ARP 625+ Pro Series I Beam Connecting Rod Set

Name: Manley Ford 5.4L Modular V8 6.657in. L w/ARP 625+ Pro Series I Beam Connecting Rod Set
Brand: Manley Performance
SKU: manley-performance-manley-ford-5-4l-modular-v8-6-657in-l-w-arp-625-pro-series-i--t14-205462
Price: 2749.20 USD
Availability: BackOrder

$2749.20

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Manley Ford 5.4L Modular V8 6.657in. L w/ARP 625+ Pro Series I Beam Connecting Rod Set. Built for high-performance engines.

Key Features

Fits Ford 5.4L Modular V8 engines.
Forged from 4340 vacuum degassed steel alloy for strength and durability.
Includes ARP 625+ bolts, known for their high tensile strength.
Features a 6.657 inch length, specific to certain Ford V8 applications.
I-beam design offers a strong and relatively lightweight connecting rod.
Available in various weight options to match specific engine build requirements.

This connecting rod set is designed for Ford 5.4L Modular V8 engines. Always verify compatibility with your specific vehicle's engine configuration.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

These Manley Pro Series I-Beam connecting rods are forged from 4340 vacuum degassed steel alloy, a strong material chosen for its ability to handle the stresses of high-performance engines. They feature ARP 625+ bolts, known for their exceptional strength and reliability in demanding applications. With a length of 6.657 inches, these rods are specifically designed for Ford 5.4L Modular V8 engines, making them a solid choice for serious engine builds.

Manley has a reputation for building well-built engine components, and this connecting rod set is no exception. The I-beam design offers a good balance of strength and weight, which is crucial for engine longevity and performance. These rods are also available in different weight options to suit various engine builds, from street performance to more specialized racing applications. Some rods in the Pro Series line even carry NHRA Legal certification for specific racing classes, underscoring their performance credentials.

When you're building a high-output engine, the connecting rods are a critical component. These Manley rods, paired with the included ARP 625+ bolts, offer a robust solution for enthusiasts looking to push their Ford 5.4L Modular V8 to its limits. Ensure you consult your engine builder or a trusted mechanic for proper installation and balancing procedures to get the most out of this set.