Description
Product Overview
The Eagle 4.5105R crankshaft is a high‑strength, forged‑steel component engineered for performance‑oriented engines. Weighing 63 pounds and measuring 28 × 9 × 8 in, it balances mass and rigidity to minimize flex under high torque. Manufactured by Eagle Specialty Products, the crankshaft meets rigorous automotive standards and carries the OEM part number 435034805700. Its precision‑ground journals ensure smooth rotation, while the hardened steel construction resists wear and fatigue over thousands of miles.
Usage
Designed for both street‑driven vehicles and track‑day applications, this crankshaft excels in high‑performance builds, engine rebuilds, and replacement projects. Ideal for enthusiasts seeking increased reliability in performance engines, it fits a variety of makes and models that specify a standard crankshaft size. Installation requires standard tools and a compatible engine block; professional tuning is recommended to maximize power gains.

Why Choose Us
Eagle’s reputation for durability stems from decades of specialized manufacturing. Each crankshaft undergoes heat treatment and dynamic balancing to ensure consistent performance. Our quality assurance includes dimensional inspections and material testing, guaranteeing that every unit meets or exceeds OEM specifications. With a proven track record in the automotive performance market, Eagle provides confidence that your engine will run smoother and last longer.
Key Features
- Forged steel construction for superior strength and fatigue resistance
- Precision‑ground journals delivering smooth, low‑friction rotation
- Balanced design reduces vibration and enhances engine longevity
- OEM‑compatible dimensions (28 × 9 × 8 in, 63 lb) for easy installation
- Model 4.5105R with part number 435034805700 for exact fitment
FAQ
Is this crankshaft compatible with my specific engine model?
The 4.5105R is designed to match OEM specifications for a range of engines that use the standard crankshaft dimensions listed. Verify your engine’s part number against the manufacturer’s catalog to ensure compatibility.
What maintenance is required after installation?
Regular oil changes with the correct viscosity are essential to keep the journals lubricated. Periodic inspection for wear and proper torque on the main caps will help maintain performance.
Can this crankshaft be used in a turbocharged application?
Yes, the forged steel construction handles the increased stresses of forced induction. Pair it with appropriate pistons and connecting rods for optimal results.
How does the weight of this crankshaft affect engine performance?
The 63‑pound weight provides a balance between rotational inertia and structural rigidity, helping to smooth power delivery while maintaining durability under high loads.
What is the warranty coverage for this product?
Eagle offers a limited warranty covering material defects and workmanship for a specified period. Refer to the warranty card included with the product for full details.





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