What is the purpose of the 58-tooth reluctor wheel?

The 58-tooth reluctor wheel is a critical component for the engine control module (ECM) to accurately determine crankshaft position and speed. This information is used for ignition timing and fuel injection, ensuring proper engine operation.

What does 'lightweight design' mean for this crankshaft?

The lightweight design refers to features like gun-drilled mains and lightened rod journals. These modifications reduce the overall mass of the crankshaft, which can lead to improved engine acceleration and responsiveness.

What kind of builds is this crankshaft suitable for?

This crankshaft is a well-built component suitable for high-performance LS engine builds. Its robust construction and features like nitriding and micro-polished journals make it a solid choice for demanding street or track applications.

Specifications

Brand: Manley Performance
Part #: 192158
UPC: 807298076690

Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel

Name: Manley Chevrolet LS 4340 Forged 4.000in Stroke Lightweight Crankshaft w/ 58 Tooth Reluctor Wheel
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-ls-4340-forged-4-000in-stroke-lightweight-cr-t14-146136
Price: 1506.48 USD
Availability: BackOrder

$1506.48

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance 4340 forged crankshaft for Chevrolet LS engines. 4.000" stroke, 58 tooth reluctor wheel.

Key Features

This crankshaft fits Chevrolet LS engines.
It is constructed from durable 4340 non-twist forged alloy steel.
Features a 4.000-inch stroke for increased displacement.
Includes a 58-tooth reluctor wheel for engine timing.
Lightweight design with gun-drilled mains and lightened rod journals.
Fully profiled counterweights ensure precise balance and stability.

This crankshaft is designed for Chevrolet LS engines. Please consult with a professional or refer to manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ 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

This is the Manley Performance Pro Series 4340 forged crankshaft, designed for Chevrolet LS engines. It features a 4.000-inch stroke and comes equipped with a 58-tooth reluctor wheel, essential for modern engine management systems. This crankshaft is a well-built component for anyone looking to build a high-performance LS engine, whether for street use or the track.

Crafted from 4340 alloy steel, this crankshaft is built for durability and performance. It's a lightweight design, with gun-drilled mains and lightened rod journals that help reduce overall rotating mass, contributing to improved engine response. The counterweights are fully profiled to ensure precise balance and stability, which is critical for high-RPM operation. To further enhance its strength and longevity, Manley subjects this crankshaft to a multi-step heat treatment process and nitriding. The journals are large radius and micro-polished, which helps reduce friction and improve overall performance.

Manley Performance puts each crankshaft through rigorous quality assurance steps. This includes stress relief, shot peening, and 100% magnafluxing to ensure it meets their stringent quality standards. This level of attention to detail means you're getting a solid component ready for demanding builds. If you're rebuilding the core of your LS engine, this crankshaft is a strong option to consider.