Eagle Specialty Products 440037505700 4340 Forged Steel Crankshaft Chevy 400 3.750" Stroke

The Eagle Specialty Products 440037505700 is a high-performance forged 4340 steel crankshaft engineered for Chevrolet 400 small block applications. Featuring a 3.750-inch stroke, this crankshaft is designed to increase displacement and deliver enhanced torque output for street performance and racing applications.

Key Features:

• Forged from premium 4340 chromoly steel for exceptional strength and durability
• 3.750-inch stroke for increased displacement and torque production
• Precision-balanced to minimize vibration and ensure smooth operation
• Nitrided surface treatment for improved wear resistance and fatigue life
• Chamfered oil holes to reduce stress concentrations
• Cross-drilled and indexed for optimal lubrication
• Micropolished journals for reduced friction and improved bearing life

This crankshaft is manufactured to strict tolerances using advanced forging techniques, making it suitable for demanding high-performance and racing applications. The 4340 steel construction provides superior strength-to-weight ratio compared to cast or nodular iron crankshafts, while the nitrided finish enhances surface hardness and resistance to wear.