What is the benefit of the 4.050 inch stroke?

The 4.050 inch stroke is a key component in 'stroking' your engine. For a 5.7L Hemi, this increases displacement to approximately 392 cubic inches, and for a 6.1L or 6.4L Hemi, it can increase displacement to around 426 cubic inches. Larger displacement generally leads to more power potential.

What does the 4340 alloy steel and nitriding process offer?

The 4340 alloy steel provides a strong foundation for the crankshaft. The nitriding process further hardens the surface of the crankshaft, significantly enhancing its strength and resistance to wear, which is crucial for high-performance applications.

What other components are typically needed for a stroker crankshaft installation?

Installing a stroker crankshaft often requires compatible pistons with a different compression height, connecting rods that match the stroke and piston pin size, and potentially different main and rod bearings. Proper balancing of the rotating assembly is also critical.

Specifications

Brand: Manley Performance
Part #: 191832NB
UPC: 807298114699

Manley Chrysler 5.7L Hemi Forged Crankshaft - 4.050in Stroke

Name: Manley Chrysler 5.7L Hemi Forged Crankshaft - 4.050in Stroke
Brand: Manley Performance
SKU: manley-performance-manley-chrysler-5-7l-hemi-forged-crankshaft-4-050in-stroke-t14-880860
Price: 1663.36 USD
Availability: BackOrder

$1663.36

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Manley Chrysler 5.7L Hemi Forged Crankshaft - 4.050in Stroke. This forged crankshaft is built for serious performance builds.

Key Features

Fits Chrysler 5.7L Hemi engines.
Features a 4.050 inch stroke for increased displacement.
Manufactured from a strong 4340 steel forging.
Gun drilled mains and lightened rod journals reduce overall weight.
Multi-step heat treatment and nitriding enhance strength and longevity.
Micro-polished journals with large radii help reduce friction.

This crankshaft is designed for Chrysler 5.7L Hemi engines. Consult manufacturer specifications for compatibility with other Hemi displacements like 6.1L and 6.4L.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're looking to build a serious performance Hemi engine, a strong crankshaft is the foundation. This Manley Pro Series crankshaft is forged from 4340 alloy steel, making it a well-built choice for pushing your engine beyond stock limits. It features a 4.050-inch stroke, which is a key part of turning your 5.7L Hemi into a larger displacement 392 cubic inch engine, or a 6.1L/6.4L into a 426 cubic inch powerhouse.

Manley puts a lot of work into making these cranks tough and reliable. They use a multi-step heat treatment process and nitriding to significantly enhance the strength and longevity of the steel. The journals are micro-polished with large radii to help reduce friction and improve overall performance. To keep things balanced and stable, the counterweights are fully profiled, and the entire assembly is gun drilled to reduce weight where it counts. Every single crankshaft is also put through rigorous quality checks, including stress relief, shot peening, and 100% magnafluxing, to ensure it meets their strict standards.

Building a stroker engine like this requires careful attention to detail during assembly. Ensure you have the correct supporting components, such as pistons, connecting rods, and bearings, that are compatible with the increased stroke and displacement. Always refer to the manufacturer's installation instructions for proper balancing, assembly procedures, and any specific requirements for your build.