Eagle Crankshaft 4.4115R Performance Engine Heavy Duty 80 lb

Description

Product Overview

Eagle Specialty Products has built a reputation for delivering high‑quality performance components, and the 4.4115R crankshaft is a prime example of that legacy. Manufactured from premium forged steel, this crankshaft is engineered to withstand the extreme stresses of high‑output engines while maintaining precise balance and structural integrity. The heavy‑duty design, weighing a solid 80 lb, provides the robustness required for both racing applications and demanding street builds, ensuring that power is transferred smoothly from the pistons to the drivetrain.

Every detail of the 4.4115R is crafted with performance in mind. The crankshaft features a fully machined, counter‑balanced configuration that reduces vibration and enhances engine smoothness at high RPMs. Its journal dimensions are optimized for maximum oil flow, promoting effective lubrication and extending the life of surrounding components. The surface finish is carefully controlled to a fine tolerance, reducing friction and improving overall efficiency. These engineering choices translate into a crankshaft that not only delivers raw power but also contributes to a more refined driving experience.

Compatibility is a key consideration for any performance part, and the Eagle 4.4115R is no exception. Designed to fit a wide range of high‑performance V8 engines, it aligns with standard OEM specifications while offering upgraded strength for aftermarket builds. The crankshaft’s dimensions and bolt pattern are matched to the Eagle 104604300 part number, ensuring a seamless swap for enthusiasts who demand reliability without the need for extensive modifications. Whether you are rebuilding a classic muscle car or constructing a purpose‑built race engine, this crankshaft provides a solid foundation.

The package dimensions of 9.24″ H x 24.79″ L x 11.02″ W and a weight of 80 lb reflect the substantial nature of the component. The crankshaft arrives securely crated to protect the precision‑machined surfaces during transit. Eagle includes all necessary hardware and documentation, making installation straightforward for professional mechanics and dedicated hobbyists alike. The robust packaging also minimizes the risk of damage, preserving the crankshaft’s performance characteristics from the moment it leaves the warehouse.

Since its introduction in 2009, the Eagle 4.4115R has earned a respectable position in the automotive performance market, ranking #59 in the Automotive Performance Engine Crankshafts category. This ranking underscores its popularity among enthusiasts seeking a dependable, high‑performance crankshaft. Eagle continues to support this product with responsive customer service, ensuring that any questions or concerns are addressed promptly, reinforcing the brand’s commitment to quality and satisfaction.

Usage

The Eagle 4.4115R crankshaft excels in environments where power, durability, and precision are paramount. In racing scenarios, the crankshaft’s balanced design reduces engine vibration, allowing drivers to push the rev limit with confidence. Its heavy‑duty construction tolerates the high torque loads typical of drag racing, circuit competition, and high‑performance street racing, delivering consistent power throughout the race.

For street enthusiasts, the crankshaft provides a noticeable improvement in engine smoothness and responsiveness. The enhanced balance contributes to a quieter, more refined idle, while the increased strength supports higher horsepower upgrades without compromising reliability. Installers often pair the 4.4115R with performance camshafts, forged pistons, and high‑flow heads to create a cohesive power package that maximizes output while maintaining engine longevity.

In engine rebuild projects, the Eagle crankshaft serves as a dependable core component. Its compatibility with a variety of aftermarket and OEM parts simplifies the rebuilding process, allowing mechanics to focus on performance tuning rather than fitment challenges. Whether the goal is to restore a classic muscle car to its original glory or to create a modern high‑performance machine, the 4.4115R provides the foundation for a successful build.

Why Choose Us

Eagle Specialty Products stands out in the performance parts industry due to its unwavering commitment to engineering excellence and customer satisfaction. Each crankshaft undergoes rigorous quality control testing, including dynamic balancing, material hardness verification, and dimensional inspection, ensuring that every unit meets the highest standards before it reaches the customer.

The company offers a comprehensive warranty that covers manufacturing defects, reflecting confidence in the durability of the 4.4115R. Eagle’s technical support team is available to assist with installation guidance, compatibility questions, and performance tuning advice, providing a level of service that extends beyond the point of sale. This dedication to after‑sales support helps customers achieve optimal results and reinforces the brand’s reputation for reliability.

Furthermore, Eagle’s supply chain management ensures that parts are sourced responsibly and delivered promptly. The 4.4115R is stocked in multiple distribution centers, reducing lead times and enabling faster project completion for both professional shops and DIY enthusiasts. By choosing Eagle, buyers gain access to a product backed by decades of engineering expertise, a robust support network, and a community of satisfied performance enthusiasts.

Key Features

• Premium forged steel construction for exceptional strength and durability
• Precision‑balanced design reduces vibration and enhances engine smoothness
• Heavy‑duty 80 lb weight supports high torque loads in racing and street builds
• Compatible with a wide range of V8 performance engines for versatile applications
• Comprehensive warranty and dedicated technical support for peace of mind

FAQ

What engines are compatible with the Eagle 4.4115R crankshaft?

The 4.4115R is engineered to fit most high‑performance V8 engines that use the Eagle part number 104604300. It aligns with standard OEM specifications while offering upgraded strength for aftermarket builds, making it suitable for classic muscle cars, modern performance vehicles, and race‑prepared engines.

Is the crankshaft ready to install out of the box?

Yes, the crankshaft arrives fully machined, balanced, and packaged with all necessary hardware and documentation. Eagle ensures that each unit passes strict quality checks, so professional installers and experienced hobbyists can proceed with installation without additional machining or preparation.

How does the heavy‑duty design affect engine performance?

The 80 lb weight of the crankshaft provides increased mass, which helps absorb and distribute the high torque loads generated by performance modifications. This results in smoother power delivery, reduced stress on connecting rods, and improved overall engine reliability, especially under extreme operating conditions.

What warranty does Eagle offer for this crankshaft?

Eagle provides a limited warranty that covers any manufacturing defects for a specified period after purchase. The warranty reflects the company’s confidence in the product’s quality and is backed by responsive customer service to address any concerns promptly.

Can I use this crankshaft for street and track applications?

Absolutely. The 4.4115R’s balanced design and robust construction make it ideal for both street‑legal performance builds and dedicated track use. Whether you are seeking a smoother daily driver or a high‑output race engine, this crankshaft delivers the reliability and performance needed for both environments.