Eagle Mopar RB 4340 Forged Crankshaft 4.375 Stroke — Fits 426 Hemi/RB-Series

SKU: BBPG_444243757100
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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.

High-Torque Eagle Mopar RB Forged Crankshaft

Take your Mopar build to the next level with the Eagle 4340 Forged Crankshaft. Specifically engineered for the Mopar RB-series and 426 Hemi engines, this crankshaft features a 4.375-inch stroke to significantly increase your engine's displacement and torque output. Forged from high-quality 4340 steel, it is built to handle the immense stress of high-horsepower applications.

Technical Specifications

  • Stroke: 4.375 inches
  • Material: 4340 Forged Steel
  • Balance: Internal Balance
  • Seal Type: 2-Piece Rear Main Seal
  • Flange: 8-Bolt Pattern
  • Application: Mopar RB-Series / 426 Hemi

This crankshaft is designed for builders who refuse to compromise. The internal balancing reduces vibration and wear, while the forged construction ensures longevity under extreme racing conditions. Whether you are building a street-strip monster or a dedicated drag car, this Eagle crankshaft provides the foundation for reliable, high-output performance. Experience the difference in quality and engineering with this premium rotating assembly component. Upgrade your Mopar engine with confidence 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.

High-Torque Eagle Mopar RB Forged Crankshaft

Take your Mopar build to the next level with the Eagle 4340 Forged Crankshaft. Specifically engineered for the Mopar RB-series and 426 Hemi engines, this crankshaft features a 4.375-inch stroke to significantly increase your engine's displacement and torque output. Forged from high-quality 4340 steel, it is built to handle the immense stress of high-horsepower applications.

Technical Specifications

  • Stroke: 4.375 inches
  • Material: 4340 Forged Steel
  • Balance: Internal Balance
  • Seal Type: 2-Piece Rear Main Seal
  • Flange: 8-Bolt Pattern
  • Application: Mopar RB-Series / 426 Hemi

This crankshaft is designed for builders who refuse to compromise. The internal balancing reduces vibration and wear, while the forged construction ensures longevity under extreme racing conditions. Whether you are building a street-strip monster or a dedicated drag car, this Eagle crankshaft provides the foundation for reliable, high-output performance. Experience the difference in quality and engineering with this premium rotating assembly component. Upgrade your Mopar engine with confidence 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.

High-Torque Eagle Mopar RB Forged Crankshaft

Take your Mopar build to the next level with the Eagle 4340 Forged Crankshaft. Specifically engineered for the Mopar RB-series and 426 Hemi engines, this crankshaft features a 4.375-inch stroke to significantly increase your engine's displacement and torque output. Forged from high-quality 4340 steel, it is built to handle the immense stress of high-horsepower applications.

Technical Specifications

  • Stroke: 4.375 inches
  • Material: 4340 Forged Steel
  • Balance: Internal Balance
  • Seal Type: 2-Piece Rear Main Seal
  • Flange: 8-Bolt Pattern
  • Application: Mopar RB-Series / 426 Hemi

This crankshaft is designed for builders who refuse to compromise. The internal balancing reduces vibration and wear, while the forged construction ensures longevity under extreme racing conditions. Whether you are building a street-strip monster or a dedicated drag car, this Eagle crankshaft provides the foundation for reliable, high-output performance. Experience the difference in quality and engineering with this premium rotating assembly component. Upgrade your Mopar engine with confidence at GGCRACING.

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