Engines and Components› Pistons and Piston Rings

Eagle Specialty Products

Competition Rotating Assembly

$2,769.97

SKU: EAG12007030

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

The Eagle Specialty Products 12007030 is a competition rotating assembly designed for performance applications. This kit includes a forged crankshaft made from 4340 steel and forged aluminum pistons. It also features piston rings with a plasmamoly facing material and floating wrist pins. The assembly utilizes a 2-piece rear main seal and is internally balanced.
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The Eagle Competition Rotating Assemblies, like the 12007030 model, are engineered to provide a robust foundation for performance engines. This kit includes essential components such as a forged 4340 steel crankshaft, forged aluminum pistons with a dish style and +16.00cc volume, and piston rings with a plasmamoly facing. It also comes with floating wrist pins, H-beam connecting rods made of forged 4340 steel, and necessary rod and main bearings. This assembly is designed for a 383 cubic inch displacement with a 4.030-inch bore and a 3.750-inch stroke, utilizing a 2-piece rear main seal. It is rated for up to 750 horsepower, with the potential to handle 1500 horsepower with an upgraded rod bolt set. Note that this assembly is internally balanced and does not include a harmonic balancer, flywheel, or flexplate. Cam bearings, gaskets, oil pumps, camshafts, lifters, and timing chain/gear sets are also sold separately. This specific rotating assembly is suitable for various racing applications, including those involving nitrous and forced induction. It is sold as a kit and includes file-fit piston rings.

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 NumberEAG12007030
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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