Engines and Components› Connecting Rods and Components

Eagle

SBC L/W 5140 Forged I-Beam Rods 6.125in

$405.99

SKU: E001 SIR6125BBLW

In Stock
In Stock
Ships by Oct 7
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The Eagle SIR6125BBLW is a set of I-beam connecting rods designed for performance applications. Constructed from forged 5140 steel, these rods feature a shot-peened surface for improved fatigue strength and are an upgrade from original equipment (OE) rods. They come with ARP 8740 bolts for secure assembly.

With a length of 6.125 inches and a rod journal diameter of 2.100 inches, these connecting rods are suitable for Chev SB Large Journal and Ford 351C applications. They are rated for up to 500 horsepower and 6000 RPM, making them a robust choice for performance engine builds.
Show original supplier description

Part #: SIR6125BBLW

Connecting Rod - SIR - I Beam - 6.125 in Long - Bushed - 3/8 in Cap Screws - Forged Steel - Small Block Chevy - Set of 8

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandEagle
Part NumberE001 SIR6125BBLW

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy