Eagle 4340 Forged I-Beam Connecting Rods 6.125in — Fits GM LS-Series Engines

SKU: BBPG_FSI6125O
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

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High-Performance Eagle 4340 Forged I-Beam Rods for GM LS

Engineered for durability and precision, the Eagle FSI6125O 4340 Forged I-Beam connecting rods are the ultimate choice for your GM LS-series engine build. These rods are designed to handle the increased stress of high-horsepower applications while maintaining structural integrity under extreme RPMs.

Technical Specifications

  • Material: 4340 Forged Steel
  • Length: 6.125 inches
  • Design: I-Beam, Bushed
  • Fasteners: 7/16 inch 8740 Cap Screws
  • Quantity: Set of 8

Each rod is meticulously crafted to ensure perfect balance and weight distribution, reducing internal engine friction and vibration. The inclusion of high-tensile 8740 steel bolts ensures that your rotating assembly remains secure, even under heavy load. Whether you are building a street machine or a dedicated track car, these rods offer the reliability needed to push your LS engine to the limit. The bushed small end is optimized for floating wrist pins, providing smooth operation and longevity. Trust your engine build to the industry-leading quality found at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

High-Performance Eagle 4340 Forged I-Beam Rods for GM LS

Engineered for durability and precision, the Eagle FSI6125O 4340 Forged I-Beam connecting rods are the ultimate choice for your GM LS-series engine build. These rods are designed to handle the increased stress of high-horsepower applications while maintaining structural integrity under extreme RPMs.

Technical Specifications

  • Material: 4340 Forged Steel
  • Length: 6.125 inches
  • Design: I-Beam, Bushed
  • Fasteners: 7/16 inch 8740 Cap Screws
  • Quantity: Set of 8

Each rod is meticulously crafted to ensure perfect balance and weight distribution, reducing internal engine friction and vibration. The inclusion of high-tensile 8740 steel bolts ensures that your rotating assembly remains secure, even under heavy load. Whether you are building a street machine or a dedicated track car, these rods offer the reliability needed to push your LS engine to the limit. The bushed small end is optimized for floating wrist pins, providing smooth operation and longevity. Trust your engine build to the industry-leading quality found at GGCRACING.

Product Details

Product Description

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

High-Performance Eagle 4340 Forged I-Beam Rods for GM LS

Engineered for durability and precision, the Eagle FSI6125O 4340 Forged I-Beam connecting rods are the ultimate choice for your GM LS-series engine build. These rods are designed to handle the increased stress of high-horsepower applications while maintaining structural integrity under extreme RPMs.

Technical Specifications

  • Material: 4340 Forged Steel
  • Length: 6.125 inches
  • Design: I-Beam, Bushed
  • Fasteners: 7/16 inch 8740 Cap Screws
  • Quantity: Set of 8

Each rod is meticulously crafted to ensure perfect balance and weight distribution, reducing internal engine friction and vibration. The inclusion of high-tensile 8740 steel bolts ensures that your rotating assembly remains secure, even under heavy load. Whether you are building a street machine or a dedicated track car, these rods offer the reliability needed to push your LS engine to the limit. The bushed small end is optimized for floating wrist pins, providing smooth operation and longevity. Trust your engine build to the industry-leading quality found at GGCRACING.

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