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Est. 1957
Eagle

Eagle Chevrolet LS 4340 4.375in Stroke 24 Tooth Reluctor Forged Crankshaft

$1206.21

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Eagle Chevrolet LS 4340 4.375in Stroke 24 Tooth Reluctor Forged Crankshaft. A strong, forged steel crankshaft for demanding LS engine builds.

Key Features

  • Fits a wide range of Chevrolet LS engines.
  • Constructed from forged 4340 steel for superior strength and durability.
  • Features a 4.375-inch stroke for increased engine displacement.
  • Includes a 24-tooth reluctor wheel for engine management compatibility.
  • Nitrided surface treatment and micropolished finish reduce friction and wear.
  • Utilizes .125-inch fillet radii, requiring chamfered or narrowed bearings for enhanced strength.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're building a high-performance Chevrolet LS engine and need a crankshaft that can handle serious power, this Eagle forged 4340 steel crankshaft is a solid choice. It features a 4.375-inch stroke, which is longer than stock, allowing for increased displacement and potential for more horsepower. This crankshaft is designed to fit a wide range of LS-based engines found in vehicles like the Chevrolet Camaro, Corvette, and Pontiac Firebird, among others.

Eagle starts with a non-twist forging of 4340 steel, a material known for its strength and durability under stress. They've incorporated .125-inch fillet radii, which are slightly smaller than standard, requiring chamfered or narrowed bearings for proper fitment but significantly boosting the crankshaft's resistance to cracking. The surface is nitrided and then micropolished, adding hardness and a smooth finish to reduce friction and wear on your bearings. This crankshaft also includes a 24-tooth reluctor wheel, essential for proper engine management system communication on many LS applications.

This crankshaft is built for demanding applications where reliability and strength are paramount. It's a critical component for any serious engine build aiming for increased performance and longevity. Ensure you have the correct bearings and understand the fillet radius requirements before installation.

Specifications

Brand
Eagle
Manufacturer Part #
434643756460
UPC
793348007908

Frequently Asked Questions

Eagle Chevrolet LS 4340 4.375in Stroke 24 Tooth Reluctor Forged Crankshaft

$1206.21