Auto Barn
Est. 1957
Eagle

Eagle Chevy 454 4.250in Crank 6.385in H-Beam 23cc Dome 4.280in Pistons Balanced Assembly

$3265.42

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Eagle Chevy 454 balanced rotating assembly. Features forged crank, H-beam rods, ICON pistons, and King bearings for high-performance builds.

Key Features

  • Fits Chevy 454 engines.
  • Includes a balanced rotating assembly for reduced vibration and improved durability.
  • Features a forged 4340 crankshaft with a 4.250-inch stroke.
  • Comes with 6.385-inch H-beam connecting rods secured by 7/16-inch ARP 8740 bolts.
  • Includes forged 4032 ICON pistons with a 23cc dome and 4.280-inch bore.
  • Equipped with plasma-moly file-fit piston rings.
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

Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

If you're building a high-performance Chevy 454 engine for serious racing, a balanced rotating assembly is the foundation you need. This Eagle Competition Rotating Assembly is designed to handle the demands of competition, whether you're running naturally aspirated, nitrous, or forced induction setups. It includes all the critical components to get your engine's bottom end built right, ensuring smooth operation and durability under stress.

At the heart of this assembly is a forged 4340 crankshaft with a 4.250-inch stroke, paired with strong 6.385-inch H-beam connecting rods. These rods are secured with 7/16-inch ARP 8740 bolts, known for their reliability in high-stress applications. The pistons are forged 4032 aluminum from ICON, featuring a 23cc dome and a 4.280-inch bore size, designed to work with the crank and rods for optimal compression and performance. This assembly also comes with plasma-moly file-fit piston rings and King XP rod and main bearings, providing excellent wear resistance and smooth operation.

This rotating assembly is balanced from the factory, which is a crucial step for any performance engine build. Balancing reduces vibration, leading to a smoother running engine, less stress on bearings and seals, and ultimately, a more durable powerplant. 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 torque specifications.

Specifications

Brand
Eagle
Manufacturer Part #
B11421L030
UPC
793348051499

Frequently Asked Questions

Eagle Chevy 454 4.250in Crank 6.385in H-Beam 23cc Dome 4.280in Pistons Balanced Assembly

$3265.42