EAGLE SPCLTY Eagle Specialty Products 103503480 3.48″ Cast Steel Crankshaft for Small Block Chevy

Description

Product Overview

The Eagle 103503480 crankshaft is forged from high‑grade cast steel and machined to exacting tolerances, delivering a robust 3.48‑inch stroke that matches the original specifications of Small Block Chevrolet engines. With an operating force of 51.5 pounds, the shaft provides the necessary torque resistance for both street‑driven and high‑performance applications. Its 45‑pound weight, combined with a precision‑machined exterior, ensures optimal balance and reduced vibration, contributing to smoother engine operation and longer component life.

Designed specifically for Small Block Chevy platforms, this crankshaft fits a wide range of models ranging from classic 1960s muscle cars to modern performance builds. The vehicle‑specific fit type eliminates the need for additional modifications, allowing mechanics and enthusiasts to install the component with confidence. Detailed dimensions, including a 71.12 mm length, 22.6 mm height, and 21.0 mm width, align with OEM standards, guaranteeing seamless integration with existing engine assemblies.

Eagle Specialty Products, a recognized name in performance engine components, manufactures this crankshaft in China under strict quality‑control protocols. Each unit undergoes rigorous testing for material integrity, dimensional accuracy, and surface finish before leaving the factory. The result is a reliable, high‑performance part that meets or exceeds industry standards, backed by Eagle’s reputation for durability and engineering excellence.

Beyond its mechanical attributes, the crankshaft’s design emphasizes ease of maintenance. The machined surfaces reduce friction and wear, while the cast‑steel composition offers resistance to cracking under extreme thermal and mechanical stress. Whether you are rebuilding a classic Chevrolet or upgrading a modern performance engine, this crankshaft provides the foundation for consistent power delivery and long‑term reliability.

Usage

This crankshaft is ideal for a variety of usage scenarios, from routine engine rebuilds to high‑performance racing applications. In street‑driven vehicles, the robust construction helps maintain smooth power delivery, reducing engine vibration and enhancing overall drivability. For performance enthusiasts, the precise balance and high operating force support increased horsepower and torque outputs, making it suitable for track days, drag racing, and other competitive environments.

Installation is straightforward for experienced mechanics and seasoned DIYers alike. The vehicle‑specific fit eliminates the need for custom machining or additional adapters, allowing the crankshaft to be bolted directly into the engine block using standard fasteners. During the rebuild process, the crankshaft’s machined journals provide a clean mating surface for connecting rods, ensuring optimal bearing clearance and longevity.

Maintenance routines benefit from the crankshaft’s durable finish. Regular oil changes and proper lubrication help preserve the machined surfaces, while the cast‑steel material resists corrosion and wear even under high‑temperature conditions. This makes the part a reliable choice for both daily drivers and high‑stress performance builds that demand consistent engine performance over extended periods.

Overall, the Eagle 103503480 crankshaft serves as a versatile component that meets the demands of classic restoration projects, modern performance upgrades, and everything in between. Its compatibility with a broad range of Small Block Chevy models ensures that a wide audience of automotive enthusiasts can take advantage of its quality and performance benefits.

Why Choose Us

Choosing Eagle means selecting a brand with decades of experience in delivering high‑quality engine components. The company’s commitment to rigorous testing and quality assurance ensures that each crankshaft meets stringent performance criteria, providing peace of mind for both professional shops and hobbyist builders.

Durability is a core attribute of this crankshaft. The cast‑steel construction, combined with a precision‑machined finish, offers superior resistance to fatigue, cracking, and wear, even under the demanding conditions of high‑performance driving. This durability translates into longer service intervals and reduced downtime, allowing you to focus on the road rather than frequent repairs.

Eagle also provides comprehensive customer support, including detailed installation guides, technical assistance, and a responsive warranty service. Should any issues arise, the support team is equipped to address concerns promptly, ensuring that your investment remains protected throughout the product’s lifecycle.

Furthermore, the crankshaft’s design emphasizes ease of installation and compatibility. By adhering to OEM specifications, Eagle eliminates the guesswork often associated with aftermarket parts, allowing for a smoother rebuild process and a more reliable final assembly.

In addition to product quality, Eagle’s global supply chain ensures timely delivery and consistent availability, making it a dependable source for parts needed in both small‑scale projects and large‑volume production runs.

Key Features

• High‑grade cast steel provides exceptional strength and resistance to fatigue.
• Precision‑machined exterior reduces friction and extends bearing life.
• 51.5 lb operating force ensures reliable power transfer for demanding applications.
• Vehicle‑specific fit for Small Block Chevy eliminates the need for custom modifications.
• Comprehensive Eagle support and warranty give confidence in long‑term performance.

FAQ

Which Small Block Chevy models are compatible with this crankshaft?

The Eagle 103503480 crankshaft is compatible with a wide range of Small Block Chevrolet engines, including classic 1960s and 1970s models as well as later performance variants. It fits engines that use the standard 3.48‑inch stroke specification, making it suitable for many restoration and performance projects.

How do I install the crankshaft correctly?

Installation begins by removing the old crankshaft and cleaning the engine block to ensure a debris‑free surface. Align the new crankshaft with the block’s dowel pins, then secure it using the factory‑specified bolts and torque settings. It is essential to lubricate the journals with high‑quality engine oil before assembly and to follow the manufacturer’s torque sequence for optimal balance.

What does the 51.5 lb operating force rating mean for my engine?

The operating force rating indicates the amount of force the crankshaft can reliably handle during normal engine operation. A rating of 51.5 lb provides a strong foundation for both street‑driven and high‑performance engines, ensuring that the crankshaft can transmit power efficiently without excessive wear or deformation.

What warranty does Eagle offer on this crankshaft?

Eagle backs the 103503480 crankshaft with a limited warranty that covers material defects and workmanship errors for a specified period after purchase. Customers can contact Eagle’s support team for warranty claims, and the company will provide replacement or repair options in accordance with the warranty terms.

Can this crankshaft be used in high‑performance racing applications?

Yes, the crankshaft’s robust cast‑steel construction, precise machining, and high operating force make it suitable for high‑performance and racing environments. It can handle increased power outputs and the stresses associated with competitive driving, provided that the rest of the engine is built to complementary performance standards.

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