Eagle SBC 4340 Forged Crankshaft 3.875 Stroke Internal Balance — Fits Small Block Chevy

SKU: BBPG_435338756000
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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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Eagle SBC 4340 Forged Crankshaft: 3.875 Stroke

Achieve superior engine performance with the Eagle SBC 4340 Forged Crankshaft. Featuring a 3.875-inch stroke, this crankshaft is designed to provide the increased displacement and torque necessary for high-performance Small Block Chevy builds. Manufactured from high-quality 4340 forged steel, this component is built to withstand the rigors of high-RPM racing and demanding street applications.

Technical Specifications

  • Material: 4340 forged steel for maximum strength.
  • Stroke: 3.875-inch stroke for improved power delivery.
  • Balance: Internal balance for smoother operation.
  • Seal Type: Compatible with 1-piece rear main seal configurations.
  • Application: Specifically engineered for Small Block Chevy (SBC) engines.

The 3.875-inch stroke is an excellent choice for builders looking to maximize their engine's potential without compromising reliability. The forged steel construction offers superior fatigue resistance, making it an essential component for high-compression or power-adder setups. Each crankshaft is precision-machined to ensure perfect fitment and bearing clearance, allowing for a smooth and reliable engine build. With its internal balance design, this crankshaft reduces vibration, contributing to a more efficient and responsive engine. Whether you are upgrading your current engine or starting a fresh build, this Eagle crankshaft provides the durability and performance you need to stay ahead of the competition. Discover high-quality engine components for your project 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

Eagle SBC 4340 Forged Crankshaft: 3.875 Stroke

Achieve superior engine performance with the Eagle SBC 4340 Forged Crankshaft. Featuring a 3.875-inch stroke, this crankshaft is designed to provide the increased displacement and torque necessary for high-performance Small Block Chevy builds. Manufactured from high-quality 4340 forged steel, this component is built to withstand the rigors of high-RPM racing and demanding street applications.

Technical Specifications

  • Material: 4340 forged steel for maximum strength.
  • Stroke: 3.875-inch stroke for improved power delivery.
  • Balance: Internal balance for smoother operation.
  • Seal Type: Compatible with 1-piece rear main seal configurations.
  • Application: Specifically engineered for Small Block Chevy (SBC) engines.

The 3.875-inch stroke is an excellent choice for builders looking to maximize their engine's potential without compromising reliability. The forged steel construction offers superior fatigue resistance, making it an essential component for high-compression or power-adder setups. Each crankshaft is precision-machined to ensure perfect fitment and bearing clearance, allowing for a smooth and reliable engine build. With its internal balance design, this crankshaft reduces vibration, contributing to a more efficient and responsive engine. Whether you are upgrading your current engine or starting a fresh build, this Eagle crankshaft provides the durability and performance you need to stay ahead of the competition. Discover high-quality engine components for your project 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

Eagle SBC 4340 Forged Crankshaft: 3.875 Stroke

Achieve superior engine performance with the Eagle SBC 4340 Forged Crankshaft. Featuring a 3.875-inch stroke, this crankshaft is designed to provide the increased displacement and torque necessary for high-performance Small Block Chevy builds. Manufactured from high-quality 4340 forged steel, this component is built to withstand the rigors of high-RPM racing and demanding street applications.

Technical Specifications

  • Material: 4340 forged steel for maximum strength.
  • Stroke: 3.875-inch stroke for improved power delivery.
  • Balance: Internal balance for smoother operation.
  • Seal Type: Compatible with 1-piece rear main seal configurations.
  • Application: Specifically engineered for Small Block Chevy (SBC) engines.

The 3.875-inch stroke is an excellent choice for builders looking to maximize their engine's potential without compromising reliability. The forged steel construction offers superior fatigue resistance, making it an essential component for high-compression or power-adder setups. Each crankshaft is precision-machined to ensure perfect fitment and bearing clearance, allowing for a smooth and reliable engine build. With its internal balance design, this crankshaft reduces vibration, contributing to a more efficient and responsive engine. Whether you are upgrading your current engine or starting a fresh build, this Eagle crankshaft provides the durability and performance you need to stay ahead of the competition. Discover high-quality engine components for your project at GGCRACING.

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