MANLEY 190470B Crankshaft Billet 807298111520 4340 77.7MM

( Brand: Manley ), ( Manufacturer Part Number: 190470B ), ( Part Type: Crankshaft ), ( Return Notes: New, Unused Condition W/original Packaging ), ( UPC: 807298111520 )

Review MANLEY Crankshaft 4340 Billet 77.7mm Stroke

The **Manley 190470B Crankshaft** is a meticulously crafted, high-performance billet component designed for enthusiasts and professional mechanics seeking uncompromising strength, precision, and reliability in their engine builds. Engineered from **4340 alloy steel**, this crankshaft exemplifies the pinnacle of modern machining technology, offering an exceptional balance of durability and weight efficiency. The **77.7mm main journal diameter** provides a robust foundation for high-revving applications, ensuring smooth operation and reduced stress under extreme loads, whether in drag racing, street tuning, or high-performance street applications. Each journal and rod bearing surface is **ground to exacting tolerances**, often featuring a **polished finish** that minimizes friction and maximizes lubrication efficiency, contributing to prolonged bearing life and enhanced engine longevity.

The **billet construction** of this crankshaft eliminates the inherent weaknesses found in cast components, delivering a homogeneous, grain-flow-optimized structure that resists fatigue and distortion under high RPM or heavy loads. The **fully machined design** ensures consistent wall thickness and precise counterweights, which are dynamically balanced to eliminate harmful vibrations that could compromise engine integrity. This crankshaft is particularly well-suited for **high-performance V8 engines**, where its robust construction can handle the demands of forced induction, aggressive camshaft profiles, or extreme power outputs without sacrificing reliability. Whether paired with a **big-block Chevy, Ford, or Chrysler application**, the Manley 190470B crankshaft stands as a testament to the brand s commitment to innovation and engineering excellence.

For those pursuing **maximum performance**, this crankshaft is often paired with Manley s other high-end components, such as their forged connecting rods, precision-machined pistons, and custom balancing services, creating a fully optimized engine package. The **heat-treated 4340 steel** undergoes rigorous quenching and tempering processes to achieve a **uniform hardness** across all critical surfaces, ensuring consistent performance under the most demanding conditions. Additionally, the **smooth, mirror-like finish** on the journals and rods not only enhances lubrication but also reflects Manley s dedication to precision engineering. Whether installed in a **restomod project, a high-mileage performance engine, or a cutting-edge race motor**, the 190470B crankshaft delivers the strength, balance, and reliability needed to push boundaries without compromising structural integrity. Built to endure the most punishing applications, this component is a cornerstone for those who demand nothing less than the best in engine performance.

### **Pros and Cons of buying a Manley 190470B Crankshaft (4340 Billet, 77.7mm Stroke)**

- 4340 billet steel is a premium alloy known for its strength, durability, and resistance to fatigue. It is heat-treated to achieve optimal hardness and toughness, making it ideal for high-performance applications.

- Manley cranks are CNC-machined to tight tolerances, ensuring consistent performance and longevity. The billet construction eliminates casting defects that can weaken traditional cranks.

- The crank is dynamically balanced, reducing vibration and improving engine smoothness. This is particularly beneficial for forced-induction builds or high-RPM applications.

- Manley offers cranks with various rod journal sizes (e.g., 2.200", 2.250") and stroke lengths, allowing for flexibility in engine builds. The 77.7mm stroke is a popular choice for muscle cars and performance applications.

- Manley is a well-respected manufacturer with a strong reputation for quality. Their cranks come with warranties, providing peace of mind against defects.

- The 4340 billet material and precise machining make this crank suitable for turbocharged or supercharged applications, where additional stress is placed on the crankshaft.

- Manley cranks are widely used in the performance community, meaning parts like rods, bearings, and seals are readily available.

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- Billet cranks are significantly more expensive than cast cranks. The 190470B is a premium part, and the price reflects its quality and custom nature.

- Since it s a billet crank, it may not be in stock and could require special ordering, leading to longer lead times.

- Installing a billet crank typically requires experienced machining and balancing. Improper installation can lead to catastrophic failure, so it s not a DIY-friendly part for most builders.

- If the engine is not heavily modified (e.g., mild street builds), a billet crank may offer more strength than needed, making it a less cost-effective choice.

- Ensuring the crank fits the block, rods, and bearings correctly is critical. Some builds may require additional machining or custom parts to achieve a perfect fit.

- A billet crank demands proper lubrication and maintenance to prevent wear. Neglect can lead to premature failure, especially in high-stress applications.

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The **Manley 190470B 4340 billet crankshaft (77.7mm stroke)** is an excellent choice for high-performance builds, particularly those involving forced induction, high RPM, or aggressive modifications. Its superior material, precision machining, and durability justify its cost for serious builders. However, it is not a necessary upgrade for mild street applications where a well-maintained cast crank would suffice.

For most **high-performance, turbocharged, or supercharged engines**, this crank is a **strong recommendation** due to its reliability and strength. For **budget-conscious or lightly modified builds**, a high-quality cast crank may be a more practical alternative.

- You are building a **high-performance engine** (turbo/supercharged, high-RPM, or aggressive nitrous applications).

- You prioritize **durability, precision, and longevity** over cost.

- You have access to **professional installation and balancing services**.

- Your build is **mildly modified** and does not require extreme strength.

- You are working with a **tight budget** and can achieve similar results with a well-maintained cast crank.

- You lack the **experience or resources** for proper installation and maintenance.

For most **serious performance builds**, this crank is a **worthwhile investment** that will pay off in reliability and power.

Details:

Condition: New. Brand: Manley. Manufacturer: Manley. A multi-step heat treatment and nitrating process maximize durability, while stress relief, shot preening, 100% menfolks inspection ensure flawless quality.

Enhanced Strength: A multi-step heat treatment process and nitrating enhance the crankshafts' strength longevity. Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. MPN: 190470B. Manley Crankshaft, CRANK-4340 BILLET 77.7mm STROKE Turbo Tiff Billet Crankshafts deliver uncompromising strength, precision, and reliability for high-horsepower high-boosted applications.

Counterweights are fully knife edged to ensure precise balance and stability. Machined from premium 4340 Turbo Tiff billet material, each crank features gun-drilled pins and fully knife-edged counterweights for reduced weight superior balance.

part #: 190470b prices

• $3578.36-$4331.50

specifications cranshafengin:

• brand: Manley
• mpn: 190470b
• part type: Crankshaft
• return notes: New, Unused Condition W/original Packaging
• upc: 807298111520

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: New

payments cranshafengin:

• other
• wallet: Paypal
• credit card: Diners-club

returns cranshafengin:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller cranshafengin:

• rating: 99.3%
• # reviews: 173971
• city: Grant, Michigan

shipping cranshafengin:

• type: Fixed
• transit: 2-6 Days
• cost: $0.00
• service: Expedited
• class: Expedited

offer cranshafengin:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: March 25, 2026

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