Engines and Components› Pistons and Piston Rings

Eagle Specialty Products

461 CID Rotating Assembly, 4.250" Stroke, 4.155" Bore

$2,179.97

SKU: EAG524014155

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 Specialty Products rotating assembly is a 461 CID kit designed for Pontiac V8 engines. It features a cast crank, forged pistons, a 4.250 in stroke, a 4.155 in bore, and 6.800 in long I-beam rods.
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The Eagle Specialty Products 524014155 rotating assembly is a comprehensive kit for Pontiac V8 engines, designed to deliver robust performance and reliability. This assembly features a cast crankshaft, forged pistons for enhanced durability, a 4.250-inch stroke, a 4.155-inch bore, and 6.800-inch long I-beam connecting rods, resulting in a 461 cubic inch displacement. Eagle Specialty Products is recognized for its commitment to quality, utilizing state-of-the-art equipment and skilled craftsmen. Their engine parts are thoroughly inspected to ensure they meet the demands of serious performance applications. This rotating assembly is built to the same high standards, providing a foundation for a powerful and dependable engine build. It is crucial to note that this assembly must be balanced by a qualified machine shop before use. Furthermore, this product is not compatible with 1976 Pontiac 400 blocks due to factory notches at the top of the cylinders.

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 NumberEAG524014155
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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