Manley Performance 191832 Pro Series 4340 Forged Crankshaft for Chrysler 5.7L and 6.1L Engines

Description

Enhance your Chrysler engine’s performance with the Manley Performance 191832 Pro Series 4340 forged crankshaft, designed specifically for 5.7L and 6.1L Hemi applications. Crafted from premium 4340 steel forging, this crankshaft features a 4.050-inch stroke that boosts engine displacement, transforming a 5.7L into a 392 cubic inch engine or a 6.1L/6.4L into a 426 cubic inch powerhouse. Its lightweight design is achieved through gun-drilled mains and lightened rod journals, which reduce rotational mass to improve acceleration and throttle response. Fully profiled counterweights ensure precise balance and engine stability, providing smoother operation during high-performance driving.

The crankshaft undergoes rigorous manufacturing processes, including a multi-step heat treatment and nitriding, to enhance durability and resistance to wear. Micro-polished large radius journals minimize friction, promoting better oil flow and improved performance under demanding conditions. Each crankshaft is subjected to stress relief, shot peening, and 100% magnaflux inspection to meet strict quality standards, ensuring reliability and long service life. This component is suitable for high-performance builds where increased displacement and strength are desired.

Please note that this crankshaft is not CARB approved and is classified as a prop 65 product, indicating the need for proper handling and installation. With its advanced features and high-quality construction, the Manley 4340 forged crankshaft is an ideal choice for enthusiasts looking to maximize their engine’s power output and efficiency in a variety of domestic engine applications.

Features:

• Manufactured from high-strength 4340 steel forging for durability

• 4.050-inch stroke increases engine displacement for enhanced power

• Gun-drilled mains and lightened rod journals reduce weight for better performance

• Fully profiled counterweights ensure precise engine balance

• Multi-step heat treatment and nitriding improve longevity

• Micro-polished journals reduce friction and enhance efficiency

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