Manley Pro Series 4340 Forged Steel Crankshaft — 4.050″ Stroke, 32X Reluctor Wheel, Compatible with 5.7L and 6.1L HEMI Engines

Description

Our “Pro Series” 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications.
Manley Crankshaft, CRANK-4340 FORGE 4.050 STROKE.

• Lightweight Design: Manufactured from a premium 4340 steel forging, gun drilled mains and lightened rod journals contribute to weight reduction and optimize engine performance. Counterweights are fully profiled to ensure precise balance and stability.Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts’ strength and longevity.Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.Increase Displacement with a ?Stroker? Crankshaft: These crankshafts feature a 4.050? stroke which can turn your 5.7L into a 392 c.i. engine and your 6.1L/6.4L into a 426 c.i. engine.

The Manley Performance 191832 Pro Series 4340 forged steel crankshaft is designed to enhance the performance and durability of domestic engine applications. Manufactured from premium 4340 steel, this crankshaft features a 4.050-inch stroke that significantly increases engine displacement, transforming a 5.7L engine into a 392 cubic inch powerhouse or a 6.1L/6.4L engine into a 426 cubic inch setup. The lightweight design is achieved through gun drilled mains and lightened rod journals, which reduce overall weight and improve engine responsiveness. Fully profiled counterweights ensure precise balance and smooth operation, contributing to optimized engine performance. The crankshaft undergoes a multi-step heat treatment process and nitriding, significantly enhancing strength, wear resistance, and longevity. Micro-polished large radius journals reduce friction, allowing for smoother rotation and better overall efficiency. Each unit is subjected to rigorous quality assurance measures, including stress relief, shot peening, and 100% magnafluxing, to meet strict industry standards and ensure reliability under demanding conditions. This crankshaft includes a 32-tooth reluctor wheel for compatibility with modern engine management systems. Designed to meet high-performance needs, the Manley 4340 forged crankshaft offers a robust solution for enthusiasts looking to increase power output and engine reliability in street or race applications.

Features:

• Lightweight design with gun drilled mains and lightened rod journals for enhanced engine responsiveness

• Manufactured from premium 4340 forged steel for superior strength and durability

• Multi-step heat treatment and nitriding process for increased longevity and wear resistance

• Micro-polished large radius journals to reduce friction and improve performance

• Fully profiled counterweights for precise balance and stability

• Includes a 32-tooth reluctor wheel compatible with modern engine control systems

• Rigorous quality assurance including stress relief, shot peening, and magnaflux testing

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