Specifications
- Brand
- Manley Performance
- Part #
- 190130NB
Manley Chevrolet Small Block Forged 4.000in Stroke Crankshaft
$1105.28
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Manley Chevrolet Small Block Forged 4.000in Stroke Crankshaft. Built with 4340 alloy steel for improved strength and durability.
Key Features
- Fits Chevrolet Small Block engines.
- Features a 4.000 inch stroke length.
- Constructed from a 4340 non-twist forged alloy steel.
- Undergoes a multi-step heat treatment and nitriding process for enhanced strength.
- Large radius journals are micro-polished to reduce friction.
- Each crankshaft is stress relieved, shot peened, and 100% magnafluxed for quality assurance.
⚠️ 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
Product Details
Starting with a 4340 non-twist forging, this Manley crankshaft is built for serious performance in Chevrolet Small Block engines. The 4.000-inch stroke is a popular choice for builders looking to increase displacement and torque, especially when paired with appropriate connecting rods and pistons. This isn't just about raw size, though; Manley puts a lot of thought into making these cranks last and perform reliably under stress.
The strength comes from a multi-step heat treatment process and nitriding, which hardens the surface and makes it more resistant to wear and fatigue. You'll also find the large radius journals are micro-polished. This process reduces friction, which means more of your engine's power gets to the wheels and less is lost to internal drag. Plus, it helps extend the life of your bearings.
Before any of these crankshafts leave Manley, they go through a rigorous quality assurance process. This includes stress relief, shot peening to relieve stress concentrations, and 100% magnafluxing to detect any potential flaws. This attention to detail ensures you're getting a well-built component ready for your next engine build.
Specifications
- Brand
- Manley Performance
- Manufacturer Part #
- 190130NB
Frequently Asked Questions
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