Engines and Components› Pistons and Piston Rings

Eagle Specialty Products

4.040" Bore Rotating Assembly

$2,549.97

SKU: EAG12001040

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

The Eagle Chevy 350 rotating assembly is a complete kit designed for engine builds. It features a 3.480" forged 4340 crankshaft and 5.700" H-beam rods with 7/16" ARP 8740 bolts. The assembly includes forged 4032 MAHLE pistons with a -5cc flat top dish and a 4.040" bore, along with plasma-moly file-fit rings. It is equipped with KING XP rod and main bearings.
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The Eagle Specialty Products Chevy 350 rotating assembly is a comprehensive kit for engine enthusiasts seeking robust performance. This assembly includes a forged 4340 crankshaft with a 3.480" stroke, paired with 5.700" H-beam connecting rods secured by 7/16" ARP 8740 bolts. The piston selection features forged 4032 MAHLE flat-top pistons with a -5cc dish, designed for a 4.040" bore, and are matched with plasma-moly file-fit rings for optimal sealing. The product page notes that this item does not have fitment application data, and advises customers to verify fitment before purchase.

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 NumberEAG12001040
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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