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Est. 1957
Eagle

Eagle Chevy LS1 3.900in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.903in Pistons Rotating Assembly

$2731.58

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Eagle Chevy LS1 rotating assembly with 3.900" crank, 6.125" rods, and 3.903" pistons. Ideal for naturally-aspirated racing.

Key Features

  • Fits Chevy LS1 engines.
  • Includes a 3.900-inch crankshaft.
  • Features 6.125-inch I-beam connecting rods.
  • Comes with 3.903-inch pistons.
  • Designed for naturally-aspirated racing use.
  • The assembly is balanced for smooth operation.
This rotating assembly is designed for Chevy LS1 engines. Please verify compatibility with your specific vehicle application.

⚠️ 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

Eagle is well-known for building strong internal engine components, and this Pro Street rotating assembly is a prime example for your Chevy LS1 engine. This is a complete package designed to handle the demands of naturally-aspirated racing applications, giving you a solid foundation for your build. It includes a 3.900-inch crankshaft, 6.125-inch I-beam connecting rods, and 3.903-inch pistons, all balanced and ready to go.

The Pro Street rotating assemblies are specifically tuned for naturally-aspirated racing use, meaning they are built to withstand the higher RPMs and consistent loads typical in these types of motors. The I-beam connecting rods are a popular choice for their strength-to-weight ratio, making them a reliable option for performance builds. This assembly comes balanced, which is a critical step in ensuring smooth engine operation and longevity, reducing vibration and stress on other engine components.

When building a performance LS1, a well-matched and balanced rotating assembly like this Eagle unit is essential. It simplifies the engine building process by providing matched components that are ready for installation. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.

Specifications

Brand
Eagle
Manufacturer Part #
638753903
UPC
793348061177

Frequently Asked Questions

Eagle Chevy LS1 3.900in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.903in Pistons Rotating Assembly

$2731.58