Engines and Components› Crankshafts and Components

Eagle Specialty Products

3.750" Cast Crankshaft I-Beam Rod Rotating Assembly

$1,653.99

SKU: EAG13006030

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In Stock
Ships by Sep 9
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$100 Minimum Order
30 Days Return
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Overview

The Eagle Specialty Products rotating assembly is designed for Chevy 350 engines. It features a 3.750" cast crank and 5.700" I-beam rods constructed from 5140 material with 3/8" ARP 8740 bolts. The assembly includes forged 4032 Mahle pistons with a -5cc flat top and a 4.030" bore. It is equipped with plasma-moly file-fit rings and King SI rod/main bearings.
Show original supplier description
The Eagle Specialty Products rotating assembly is a performance upgrade for Chevy 350 engines, offering a balanced combination of durable components for enhanced power and reliability. This kit features a 3.750-inch cast crankshaft, paired with 5.700-inch I-beam connecting rods made from strong 5140 material and secured with 3/8-inch ARP 8740 bolts. The assembly includes forged 4032 Mahle pistons with a -5cc flat top design, suitable for a 4.030-inch bore. Complementing the pistons and rings are King SI rod and main bearings, ensuring smooth operation and longevity under demanding conditions. This rotating assembly is built for both street and strip applications, providing a robust foundation for engine builds seeking increased performance. It's important to note that while this product is listed under Wheels and Tires due to cataloging, it is a critical engine internal component. Ensure compatibility with your specific engine block and intended application before purchase. Professional installation is highly recommended for rotating assemblies to ensure proper balance and function.

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 NumberEAG13006030
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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