Eagle Crankshaft 4346400061 4.0in Stroke Chevy 5.7/6.0L

Description

Product Overview

The Eagle 4346400061 crankshaft is a premium replacement component designed for Chevrolet V8 engines with 5.7L and 6.0L displacements. Crafted from high‑strength 4340 forged steel, the crankshaft undergoes a meticulous machining process that ensures each journal is perfectly concentric and balanced. The 4.0‑inch stroke length is engineered to match the original equipment specifications, providing the exact piston travel required for optimal combustion efficiency. Internal balance weights are precision‑cast to reduce vibration and extend bearing life, while the machined exterior finish promotes smooth oil flow across journal surfaces. This combination of material quality, dimensional accuracy, and internal balancing delivers a crankshaft that not only meets but exceeds OEM performance standards.

Usage

This crankshaft is intended for use in both performance‑oriented builds and standard replacement scenarios. It is compatible with Chevrolet 5.7L (often found in LS1, LS2, and LS3 platforms) and 6.0L (commonly used in LQ4 and LQ9 applications) engines, making it a versatile choice for a wide range of vehicle models, including trucks, SUVs, and performance cars. Installers should verify clearances with the connecting rods and ensure proper torque specifications during assembly. The crankshaft’s forged construction tolerates higher horsepower outputs, allowing enthusiasts to safely increase power through aftermarket camshafts, intake manifolds, and exhaust systems. Whether rebuilding a classic muscle car or upgrading a modern truck for towing, the Eagle crankshaft provides the durability and reliability required for demanding driving conditions.

Why Choose Us

Choosing the Eagle 4346400061 crankshaft means selecting a component backed by decades of engineering expertise and a commitment to quality assurance. Each crankshaft undergoes a rigorous inspection process that includes magnetic particle testing, ultrasonic testing, and dimensional verification to guarantee that no defects escape the production line. Our forged steel is sourced from reputable mills that meet ASTM standards for tensile strength and impact resistance, ensuring the crankshaft can withstand the high stresses of combustion cycles. In addition, Eagle provides a limited warranty that covers material defects, giving customers confidence in the longevity of their investment. Our dedicated technical support team is available to assist with fitment questions, installation guidance, and after‑sales service, reinforcing our reputation as a trusted supplier for professional mechanics and DIY enthusiasts alike.

Key Features

• Forged 4340 steel construction delivers superior strength and fatigue resistance.
• Precisely machined 4.0‑inch stroke ensures exact fit for Chevrolet 5.7L and 6.0L engines.
• Internal balance weights reduce vibration, extending bearing life and improving smoothness.
• Machined exterior finish promotes optimal oil circulation for enhanced lubrication.
• Comes with dedicated technical support and a limited warranty for peace of mind.

FAQ

What engines are compatible with the Eagle 4346400061 crankshaft?

The crankshaft is designed for Chevrolet V8 engines with 5.7L (LS1, LS2, LS3) and 6.0L (LQ4, LQ9) displacements, covering a broad range of trucks, SUVs, and performance cars.

Is any additional machining required before installation?

No additional machining is needed. The crankshaft arrives fully machined to OEM specifications, ready for direct installation with the appropriate connecting rods and bearings.

Can this crankshaft handle increased horsepower from performance upgrades?

Yes. The forged 4340 steel material and internal balance weights provide the strength and durability needed for higher horsepower applications, making it suitable for performance builds that include upgraded camshafts, intake, and exhaust components.

What warranty does Eagle offer on this crankshaft?

Eagle provides a limited warranty covering material defects, giving customers confidence in the product’s quality and longevity.

How do I ensure proper fitment during installation?

Verify clearances with your connecting rods, follow the manufacturer’s torque specifications, and use a reputable machine shop if you are not experienced with engine assembly. Our technical support team can also assist with any fitment questions.