Engines and Components› Pistons and Piston Rings

Eagle Specialty Products

BBF 429/460 501 CID Rotating Assembly

$2,059.97

SKU: EAG15102030

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

Advanced — 4+ hours

Overview

The Eagle BBF 429/460 Rotating Assembly is a 501 CID engine component designed for Big Block Ford applications. It features a cast crankshaft, forged pistons, a 4.140 inch stroke, a 4.390 inch bore, and 6.800 inch I-beam connecting rods. This assembly is intended for high-performance use.

Eagle Specialty Products emphasizes quality and uses state-of-the-art equipment and skilled craftsmen in their manufacturing process. All rods and crankshafts are thoroughly inspected to ensure suitability for demanding applications. This rotating assembly is noted as not being an emissions item.
Show original supplier description
The Eagle BBF 429/460 Rotating Assembly is a key component for Big Block Ford engines, offering a 501 cubic inch displacement. It features a 4.140 inch stroke and a 4.390 inch bore, paired with 6.800 inch I-beam connecting rods. Eagle Specialty Products is recognized for its commitment to quality, utilizing advanced equipment and experienced craftsmen to produce their engine parts. Each connecting rod and crankshaft undergoes rigorous inspection and quality control to meet the highest standards. This particular rotating assembly is specifically identified as not being an emissions-related part. It is crucial to note that this assembly must be balanced by a qualified machine shop before use to ensure proper operation and longevity. This step is critical for achieving optimal performance and preventing potential damage.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandEagle Specialty Products
Part NumberEAG15102030
CategoryEngines and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy