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Est. 1957
Eagle

Eagle Chevy 454 4.000in Crank 6.135in I-Beam Rods 12cc Dome 4.320in Pistons Balanced Assembly

$1981.22

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Eagle Chevy 454 balanced rotating assembly. Built for street performance with a 4.000" crank, 6.135" rods, and 12cc dome pistons.

Key Features

  • Balanced rotating assembly for Chevy 454 engines.
  • Includes a 4.000-inch cast crankshaft.
  • Features 6.135-inch I-beam connecting rods with 7/16-inch ARP 8740 bolts.
  • Comes with 4.320-inch hypereutectic KB 12cc dome pistons.
  • Equipped with plasma-moly file-fit rings.
  • Includes King SI rod and main bearings.
This rotating assembly is designed for Chevy 454 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

If you're rebuilding the heart of your Chevy 454 for street use, this balanced rotating assembly from Eagle is a solid foundation. It's designed for naturally aspirated, pump gas applications, giving you improved performance without needing exotic fuel. This assembly includes everything you need to get your engine's bottom end built right.

At its core is a 4.000-inch cast crankshaft, paired with 6.135-inch I-beam connecting rods. These rods feature 7/16-inch ARP 8740 bolts, known for their strength and reliability in performance builds. The pistons are hypereutectic KB 12cc dome units, sized at 4.320 inches, and come with plasma-moly file-fit rings. This combination is balanced as an assembly, which is crucial for reducing engine vibration and ensuring smooth operation at higher RPMs. King SI rod and main bearings are also included, providing dependable lubrication for critical rotating components.

This assembly is a great choice for a street-oriented build where you want more power than a stock engine, but still need it to run on regular pump gas. Keep in mind 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.

Specifications

Brand
Eagle
Manufacturer Part #
B18201070
UPC
793348116204

Frequently Asked Questions

Eagle Chevy 454 4.000in Crank 6.135in I-Beam Rods 12cc Dome 4.320in Pistons Balanced Assembly

$1981.22