Manley Performance
Manley Nissan (SR20DE/DET) 86.5mm +.5mm Oversized Bore 9.0:1 Dish Piston Set with Ring - 638005C-4
- SKU:
- MAN638005C-4
- UPC:
- 807298095318
- MPN:
- 638005C-4
- Availability:
- Regularly stocked product
Description
Will these pistons fit my car?
Manley Platinum Series pistons require careful confirmation of specific vehicle fitment before professional installation to ensure optimal performance.
What is the typical installation time?
Professional installation is recommended for these forged 2618 alloy pistons to achieve their full extreme durability benefits.
Manley 4 Cyl Platinum Series forged pistons are engineered for demanding motorsport applications, achieving a 9/9 score for Track/Autocross and Drag Racing. Featuring 2618 alloy forgings and proven skirt profiles, these pistons deliver extreme durability for sustained high-performance driving. Trust Manley for unparalleled strength and resilience in your 4cyl engine.
What Owners Say
Owners and enthusiasts consistently praise Manley pistons as well-designed 2618 forgings that rank alongside top competitors like CP and Wiseco, with builders frequently choosing them for high-performance applications. The pistons earn particular recognition for not scoring cylinder walls and for impressive weight reduction—some reporting assemblies running 46 grams lighter than OEM components, a significant advantage for balanced builds. However, several users note concerns about the included piston rings becoming soft over time and losing proper seal, leading to premature oil consumption issues. Despite this ring criticism, enthusiasts appreciate that Manley has responded to feedback about earlier weight concerns, and the pistons themselves maintain a strong reputation among the building community for quality forging and cylinder-friendly design.
Key Features
- Platinum Series pistons
- 2618 alloy forgings
- proven cam and barrel skirt profiles
- tool steel wrist pins
- moly skirt coatings
- Chrome Moly Wrist Pins
Why Choose the MAN Piston Sets - 4 Cyl
Delivers extreme durability for sustained high-performance driving.
Achieves optimal engine efficiency and power delivery under stress.
Provides smoother engine operation and reduced friction for enhanced responsiveness.
Transforms your engine's reliability for demanding track or street use.
Who Is This For?
Track / Autocross — 9/10
Forged 2618 alloy for high stress resilience.
Drag Racing — 9/10
2618 alloy forgings offer superior strength for racing.
Racing Competition — 9/10
Premium performance pistons built for demanding competition.
Street Performance — 8/10
Forged construction enhances engine durability and power.
Engine Performance — 9/10
2618 alloy forgings engineered for strength and resilience.
Additional Resources
Important Notices
⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.
⚠️ 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.
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Piston Sets - Forged - 4cyl |
Clearance Item: |
N |
MPN: |
638005C-4 |
Proposition 65: |
Y |
Universal Fitment: |
Y |
Product Level: |
Premium Performance |
Track / Autocross: |
9/10 |
Drag Racing: |
9/10 |
Racing Competition: |
9/10 |
Street Performance: |
8/10 |
Engine Performance: |
9/10 |
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