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Engines and Components› Engines, Blocks and Components

Eagle Specialty Products

Rotating Assembly Kit

$1,293.99 $1,172.97 Save $121.02

SKU: EAGB15455E040

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 Specialty Products EAGB15455E040 is a balanced rotating assembly kit. It features a 3.750" cast crank and 5.700" I-beam rods with 3/8" ARP 8740 bolts. The kit includes hyper eutectic KB claimer -5cc flat top pistons and plasma-moly standard gap rings. It also comes with KING SI Rod/Main Bearings.
Show original supplier description
The Eagle Specialty Products EAGB15455E040 is a balanced rotating assembly kit designed for performance automotive applications. This kit includes a 3.750" cast crankshaft, 5.700" I-beam connecting rods secured with 3/8" ARP 8740 bolts, and -5cc flat top pistons with a 4.040" bore. The pistons are hyper eutectic KB claimer type, paired with plasma-moly standard gap rings. The assembly also comes complete with KING SI Rod/Main Bearings for a reliable engine build. Eagle Specialty Products emphasizes quality in their manufacturing process, using only certified steel for their cranks and rods. They employ multi-stage heat treating, sonic testing, magna-fluxing, and x-ray inspection to ensure product reliability. This commitment to quality provides maximum value for engine builders. This product is not CARB Legal and is not for sale in California. All parts are special order from the manufacturer, and customers are advised to contact for stock status before purchasing to avoid potential cancellation fees.

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.

Fitment

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Specifications

BrandEagle Specialty Products
Part NumberEAGB15455E040
CategoryEngines and Components

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Returns & Fitment

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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