Manley Performance
Manley Subaru EJ20/EJ25 4340 Billet 79mm Stroke Turbo Tuff Series Crankshaft - 190040B
- SKU:
- MAN190040B
- UPC:
- 807298062945
- MPN:
- 190040B
- Availability:
- Regularly stocked product
Description
What are the primary benefits of a Manley Forged Crankshaft?
Manley forged crankshafts deliver extreme durability and superior oil flow to critical bearing surfaces, ensuring ultimate engine longevity.
How does the material of the Manley Forged Crankshaft contribute to its performance?
Engineered from 4340 Turbo Tuff billet material, this crankshaft achieves unparalleled strength and handles extreme power for explosive acceleration.
Manley Forged Crankshafts are engineered from 4340 Turbo Tuff billet material, delivering unparalleled strength for relentless track abuse and extreme power handling. Featuring gun-drilled pins and multi-step heat treatment, these crankshafts are built for the most demanding motorsport applications. Confirm fitment with your vehicle for ultimate confidence in your high-performance engine build.
What Owners Say
Owners and enthusiasts running Manley forged crankshafts generally report strong performance, particularly when paired with Manley rods and quality pistons in high-horsepower builds. Users appreciate the value proposition and durability in demanding applications, with some successfully running these cranks in serious power ranges. However, there's honest acknowledgment that forged cranks can experience bending and twisting under extreme loads, and at least one builder reported a failure in the 550-800whp range with an 88mm configuration. The consensus suggests these are solid, well-priced forged cranks that deliver reliable performance for most street and track applications, earning their place as a trusted option in the performance engine building community.
Key Features
- 4340 Turbo Tuff billet material
- gun-drilled pins
- fully knife-edged counterweights
- multi-step heat treatment
- nitriding process
- Direct Shot Oiling
Why Choose the MAN Forged Crankshafts
Delivers extreme durability for relentless track abuse and extreme power.
Achieves superior oil flow to critical bearing surfaces for ultimate engine longevity.
Provides enhanced strength and reduced rotational mass for explosive acceleration.
Transforms engine reliability under extreme boost and high RPM conditions.
Who Is This For?
Track / Autocross — 9/10
4340 Turbo Tuff billet material for extreme power handling.
Drag Racing — 9/10
4340 Turbo Tuff billet material for extreme power handling.
Street Performance — 8/10
Premium performance crankshaft for enhanced engine output.
Racing Competition — 9/10
Engineered for unparalleled strength and extreme power handling.
Engine Performance — 9/10
4340 Turbo Tuff billet material for extreme power handling.
Additional Resources
Important Notices
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Browse More: Shop All Crankshafts — Engine Components
Additional Information
Clearance Item: |
N |
MPN: |
190040B |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Crankshafts |
Install Type: |
Drop-In |
Product Level: |
Premium Performance |
Track / Autocross: |
9/10 |
Drag Racing: |
9/10 |
Street Performance: |
8/10 |
Racing Competition: |
9/10 |
Engine Performance: |
9/10 |
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