Engines and Components› Connecting Rods and Components

Eagle Specialty Products

SIR Series 5.956-Inch I-Beam Connecting Rod Set

$349.99

SKU: EAGSIR5956FP

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In Stock
Ships by Sep 9
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$100 Minimum Order
30 Days Return
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Overview

The Eagle Specialty Products SIR5956FP is a set of I-beam connecting rods designed for Ford small block engines. These rods are forged from 5140 steel for strength and reliability, featuring a press-fit wrist pin style. They are sold as a set of 8 and are weight-matched to within two grams.

The SIR series connecting rods are X-rayed, sonic-tested, magnafluxed, and shot-peened to relieve metal stress. Each rod has a length of 5.956 inches center to center and comes with ARP 12-point, 3/8-inch 8740 chromoly steel connecting rod bolts with a tensile strength of 180,000 psi.
Show original supplier description
The Eagle Specialty Products SIR I-Beam Connecting Rods (SIR5956FP) offer a robust upgrade for Ford small block engines, providing enhanced strength and reliability over stock components. These connecting rods are forged from durable 5140 steel and feature an I-beam design, a press-fit wrist pin style, and a length of 5.956 inches center-to-center. They are sold as a set of eight, ensuring a complete replacement for your engine's rotating assembly. Each set is weight-matched to within two grams, contributing to a balanced rotating assembly for smoother operation and increased engine life. The connecting rods are equipped with high-strength ARP 12-point, 3/8-inch 8740 chromoly steel bolts, boasting a tensile strength of 180,000 psi, capable of handling demanding engine conditions. The big end sizing is precisely machined using in-house CNC equipment to guarantee accurate fitment. These Eagle SIR I-Beam Connecting Rods are rated for up to 500 horsepower, making them suitable for street and strip applications.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandEagle Specialty Products
Part NumberEAGSIR5956FP
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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