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Est. 1957
Eagle

Eagle Chevy 400 350 Mains 3.750in Crank 6.000in H-Beam 4cc Dome 4.155in Pistons Rotating Assembly

$2861.32

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Eagle Chevy 400 350 Mains 3.750in Crank 6.000in H-Beam 4.155in Pistons Rotating Assembly. Competition assembly for racing use.

Key Features

  • Fits Chevy 400 and 350 mains.
  • Includes a 3.750-inch forged 4340 crankshaft.
  • Comes with 6.000-inch H-beam connecting rods featuring 7/16-inch ARP 8740 bolts.
  • Features forged 2618 Mahle 4cc dome pistons with a 4.155-inch bore size.
  • Includes plasma-moly file-fit piston rings for custom gapping.
  • Equipped with King XP rod and main bearings for enhanced durability.
This rotating assembly is designed for Chevy 400 and 350 mains. Please consult manufacturer documentation to confirm compatibility with your specific engine build.

⚠️ 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 robust engine components, and this competition rotating assembly is a prime example of their commitment to performance. If you're building a high-horsepower Chevy engine, especially one intended for racing applications like nitrous or forced induction, this assembly is designed to handle the stress. It brings together a strong forged crankshaft, durable connecting rods, and precisely matched pistons to form the heart of your engine's power delivery.

At the core of this assembly is a 3.750-inch forged 4340 crankshaft, chosen for its strength and ability to withstand the demands of performance engines. Paired with this are 6.000-inch H-beam connecting rods, which are known for their solid construction and reliability under load. These rods come equipped with 7/16-inch ARP 8740 bolts, a name trusted for their high-strength fastening solutions. The pistons are forged 2618 aluminum with a 4cc dome, designed to work with the specific cylinder head volume for optimal compression. They also include plasma-moly file-fit rings, allowing for precise gap setting to match your engine's bore and intended use. To ensure smooth operation and longevity, King XP rod and main bearings are included, offering excellent wear resistance and performance.

This rotating assembly is a comprehensive package for serious engine builders. It's important to note that this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and break-in procedures to ensure optimal performance and durability.

Specifications

Brand
Eagle
Manufacturer Part #
12604040
UPC
793348540832

Frequently Asked Questions

Eagle Chevy 400 350 Mains 3.750in Crank 6.000in H-Beam 4cc Dome 4.155in Pistons Rotating Assembly

$2861.32