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Est. 1957
Eagle

Eagle Chevy LS1 4.000in Crank 24 Tth Reluctor 6.125in I-Beam Rods 3.898in Pistons Balanced Assembly

$2753.54

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Eagle Pro Street balanced rotating assembly for Chevy LS1. Features a 4.000in forged crank and 6.125in I-beam rods for naturally-aspirated racing.

Key Features

  • Fits Chevy LS1 engines.
  • Includes a 4.000-inch forged 4140 crankshaft with a 24-tooth reluctor.
  • Features 6.125-inch I-beam connecting rods made from 4340 steel with 7/16-inch ARP 8740 bolts.
  • Comes with forged 4032 DSS -5cc flat-top pistons measuring 3.898 inches.
  • Includes plasma-moly file-fit rings for custom gap setting.
  • Equipped with King XP rod and main bearings for enhanced durability.
This rotating assembly is designed for Chevy LS1 engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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

Starting with a 4.000-inch forged 4140 crankshaft, this balanced rotating assembly is built for performance in Chevy LS1 engines, especially for naturally-aspirated racing applications. The crankshaft features a 24-tooth reluctor, crucial for proper engine management systems. This assembly is designed to handle the demands of a performance build where reliability and precise component matching are key.

Complementing the crankshaft are 6.125-inch I-beam connecting rods made from strong 4340 steel. These rods are secured with 7/16-inch ARP 8740 bolts, known for their strength and reliability under high stress. The pistons are forged 4032 DSS flat-top designs with a -5cc dish, measuring 3.898 inches in diameter. They come equipped with plasma-moly file-fit rings, allowing for precise gap setting during installation to optimize sealing and performance. King XP rod and main bearings are included, offering robust protection for the rotating assembly.

This assembly comes balanced from Eagle, saving you a significant step in the engine building process and ensuring smooth operation. It's important to 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 break-in procedures to ensure the longevity and performance of your engine.

Specifications

Brand
Eagle
Manufacturer Part #
B637003898
UPC
793348041377

Frequently Asked Questions

Eagle Chevy LS1 4.000in Crank 24 Tth Reluctor 6.125in I-Beam Rods 3.898in Pistons Balanced Assembly

$2753.54