Engines and Components› Crankshafts and Components

Eagle Specialty Products

Forged 4340 Steel Crankshaft

$917.99

SKU: EAG445440026135

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

Professional / shop required

Overview

The Eagle Specialty Products EAG445440026135 is a forged 4340 steel crankshaft designed for Big Block Chevy engines. It features a 4.000 inch stroke and internal balance. The crankshaft utilizes a 2-piece seal and has a pilot bore diameter of 1.094".
Show original supplier description
The Eagle Specialty Products EAG445440026135 crankshaft is constructed from forged 4340 steel, providing durability and strength for high-performance applications. This crankshaft is engineered for Big Block Chevy engines and features a 4.000 inch stroke, contributing to increased displacement and power potential. It is equipped with a 2-piece rear main seal for reliable sealing. Key specifications include a pilot bore diameter of 1.094", a rod journal width of 2.000", and a rod journal size of 2.2". The rear seal diameter is listed as "call", indicating a specific measurement or option to be confirmed. This forged crankshaft is a robust component for engine builds seeking enhanced performance and reliability. Its construction and specifications are suited for demanding engine applications where superior strength is paramount.

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 NumberEAG445440026135
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