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Engines and Components› Engines, Blocks and Components

Eagle Specialty Products

427/454 Balanced Rotating Assembly 4.250" Crank 6.385" Rods

$2,307.99 $2,123.26 Save $184.73

SKU: EAGB18022030

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
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Overview

The Eagle Chevy 427/454 Balanced Rotating Assembly is a complete engine internal component kit for automotive performance applications. It features a 4.250" cast crank, 6.385" I-beam rods, and 7/16" ARP 8740 rod bolts. The assembly includes forged 4032 Mahle pistons with an 18cc dome and 4.280" bore, plasma-moly file-fit rings, and King SI rod/main bearings.
Show original supplier description
The Eagle Chevy 427/454 Balanced Rotating Assembly is designed for automotive performance enthusiasts looking to upgrade their engine's internals. This comprehensive kit includes a 4.250" cast crankshaft, 6.385" I-beam connecting rods secured with 7/16" ARP 8740 bolts, and forged 4032 Mahle pistons with an 18cc dome and 4.280" bore. Further enhancing its performance capabilities, the assembly comes equipped with plasma-moly file-fit piston rings and King SI series rod and main bearings for optimal lubrication and reduced friction. A Pioneer damper and a 168-tooth flexplate are also included to complete the rotating assembly. Eagle Specialty Products utilizes multi-stage heat treating, sonic testing, magna-fluxing, and x-ray inspection to ensure the quality and reliability of their steel cranks and rods. Please note that this product is a special order item from the manufacturer and may vary from the image shown. If delivery time is a concern, it is recommended to contact the seller for stock status before purchasing to avoid potential cancellation fees. Additionally, this product is not CARB legal and cannot be sold or shipped to California.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandEagle Specialty Products
Part NumberEAGB18022030
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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