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Engines and Components› Engines, Blocks and Components

Eagle Specialty Products

383 CID Rotating Assembly Kit

$1,529.99 $1,437.97 Save $92.02

SKU: EAGB15405E030

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
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Overview

The Eagle Specialty Products B15405E030 is a 383 CID rotating assembly kit designed for Small Block Chevy engines. It features a cast crank, hypereutectic pistons, a 3.750-inch stroke, a 4.030-inch bore, and 5.700-inch I-beam rods. Eagle Specialty Products is known for providing quality engine parts and is the largest aftermarket connecting rod manufacturer in the world.
Show original supplier description
The Eagle Specialty Products B15405E030 is a comprehensive 383 CID rotating assembly kit engineered for Small Block Chevy applications. This kit includes a durable cast crankshaft, reliable hypereutectic pistons, and robust 5.700-inch I-beam connecting rods, all designed to work together to form the core of a high-performance engine. With a 3.750-inch stroke and a 4.030-inch bore, this assembly is precision-machined to meet demanding performance standards. Eagle Specialty Products utilizes state-of-the-art equipment and skilled craftsmen to produce engine components that do not compromise on quality. Each crankshaft and connecting rod is rigorously inspected to ensure suitability for intensive use, whether for professional engine builders or dedicated enthusiasts. Eagle Specialty Products distinguishes itself by offering a range of components, from premium forged 4340 crankshafts and H-beam rods for extreme performance builds, to quality cast steel cranks and I-beam rods suitable for weekend racers. The company's commitment to quality has established them as the leading aftermarket connecting rod manufacturer globally.

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 NumberEAGB15405E030
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.

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