Eagle 4340 Forged Crankshaft 4.000 Stroke — Fits Big Block Chevy

SKU: BBPG_445440026135
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Sale price$1,044.99
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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.

Watch in action

High-Strength Performance for BBC

The Eagle 4340 Forged Steel Crankshaft is the perfect upgrade for any Big Block Chevy build requiring a 4.000-inch stroke. Built to handle significant power levels, this crankshaft is a staple for performance engine builders who prioritize reliability and structural integrity. The forged 4340 steel provides a robust foundation, ensuring your engine can handle the heat and pressure of competitive racing environments.

Key Features

  • Material: 4340 Forged Steel
  • Stroke: 4.000 inches
  • Balance: Internal balance
  • Seal Type: 2-Piece rear main seal
  • Application: Big Block Chevy (BBC)
  • High-strength forged construction

This crankshaft is meticulously balanced to ensure smooth operation across the entire power band. By choosing an internally balanced unit, you reduce the need for external weights, simplifying your rotating assembly setup and improving overall engine efficiency. The 2-piece rear main seal compatibility makes this an excellent choice for classic Big Block Chevy blocks, ensuring a leak-free and reliable seal. Whether you are building a street-strip machine or a dedicated track car, this Eagle crankshaft offers the durability needed to keep your engine performing at its peak. Its precision machining ensures excellent bearing clearance and fitment, saving you time during the assembly process. Trust in the quality of Eagle products to provide the performance you need. Find all your engine building needs 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-Strength Performance for BBC

The Eagle 4340 Forged Steel Crankshaft is the perfect upgrade for any Big Block Chevy build requiring a 4.000-inch stroke. Built to handle significant power levels, this crankshaft is a staple for performance engine builders who prioritize reliability and structural integrity. The forged 4340 steel provides a robust foundation, ensuring your engine can handle the heat and pressure of competitive racing environments.

Key Features

  • Material: 4340 Forged Steel
  • Stroke: 4.000 inches
  • Balance: Internal balance
  • Seal Type: 2-Piece rear main seal
  • Application: Big Block Chevy (BBC)
  • High-strength forged construction

This crankshaft is meticulously balanced to ensure smooth operation across the entire power band. By choosing an internally balanced unit, you reduce the need for external weights, simplifying your rotating assembly setup and improving overall engine efficiency. The 2-piece rear main seal compatibility makes this an excellent choice for classic Big Block Chevy blocks, ensuring a leak-free and reliable seal. Whether you are building a street-strip machine or a dedicated track car, this Eagle crankshaft offers the durability needed to keep your engine performing at its peak. Its precision machining ensures excellent bearing clearance and fitment, saving you time during the assembly process. Trust in the quality of Eagle products to provide the performance you need. Find all your engine building needs 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-Strength Performance for BBC

The Eagle 4340 Forged Steel Crankshaft is the perfect upgrade for any Big Block Chevy build requiring a 4.000-inch stroke. Built to handle significant power levels, this crankshaft is a staple for performance engine builders who prioritize reliability and structural integrity. The forged 4340 steel provides a robust foundation, ensuring your engine can handle the heat and pressure of competitive racing environments.

Key Features

  • Material: 4340 Forged Steel
  • Stroke: 4.000 inches
  • Balance: Internal balance
  • Seal Type: 2-Piece rear main seal
  • Application: Big Block Chevy (BBC)
  • High-strength forged construction

This crankshaft is meticulously balanced to ensure smooth operation across the entire power band. By choosing an internally balanced unit, you reduce the need for external weights, simplifying your rotating assembly setup and improving overall engine efficiency. The 2-piece rear main seal compatibility makes this an excellent choice for classic Big Block Chevy blocks, ensuring a leak-free and reliable seal. Whether you are building a street-strip machine or a dedicated track car, this Eagle crankshaft offers the durability needed to keep your engine performing at its peak. Its precision machining ensures excellent bearing clearance and fitment, saving you time during the assembly process. Trust in the quality of Eagle products to provide the performance you need. Find all your engine building needs at GGCRACING.

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