Wiseco
Wiseco Mazda Speed 3 Dished -13.3cc 9.5:1 Piston Shelf Stock Kit - K640M875
- SKU:
- WISK640M875
- UPC:
- 00193564077646
- MPN:
- K640M875
- Availability:
- Regularly stocked product
Description
What is the typical compression ratio achieved with these pistons?
Piston Sets - Forged - 4cyl achieve a 9.5:1 compression ratio with a -13.3cc piston volume for optimized race performance.
What is the recommended installation process for these pistons?
Professional installation is strongly recommended for these forged pistons to ensure optimal performance and durability.
Wiseco Piston Sets - Forged - 4cyl deliver a 9.5:1 compression ratio, excelling in Racing Competition with a score of 10. Precision forged from 2618 aluminum and featuring an ArmorGlide skirt coating, these pistons are engineered for ultimate race performance and durability.
What Owners Say
Owners and enthusiasts consistently praise Wiseco piston sets for delivering high quality at a competitive price point, with many noting they offer better value than comparable alternatives while maintaining the durability Wiseco has built its reputation on. The pistons are recognized for solid performance gains, particularly in compression upgrades, though some builders note that replacement ring sets can be challenging to source and may require contacting Wiseco directly. While enthusiasts recommend the pistons themselves without hesitation, there's some caution around other Wiseco product lines like crankshafts. Overall, Wiseco piston sets have earned strong confidence in the performance community as a reliable, proven choice for engine builds.
Key Features
- Precision ring grooves
- anti-detonation groove
- additional ring seal improving features
- ArmorGlide Skirt Coating
- Fully machined crown features Forced pin oiling
Why Choose the WIS Piston Sets - 4 Cyl
Delivers superior ring seal for maximum power and reduced blow-by.
Achieves enhanced combustion stability, preventing engine-damaging detonation.
Provides exceptional piston skirt durability and reduced friction for longevity.
Transforms engine reliability with forced pin oiling for extreme conditions.
Who Is This For?
Racing Competition — 10/10
Designed for optimized race performance, forged aluminum.
Track / Autocross — 9/10
Optimized for high performance and race conditions.
Street Performance — 7/10
Forged aluminum and performance features enhance engine output.
Engine Performance — 10/10
Forged 2618 aluminum, specific compression ratio, and features.
Drag Racing — 9/10
High performance design suitable for demanding race conditions.
Frequently Asked Questions
Will the Wiseco WIS Piston Sets - 4 Cyl fit my vehicle?
Confirming direct fitment for your specific vehicle is essential for optimal performance with these Wiseco pistons. Always verify compatibility with a qualified technician before installation. This ensures the precise engineering aligns with your vehicle's requirements.
How difficult is the Wiseco WIS Piston Sets - 4 Cyl installation?
Professional installation is strongly recommended for the Wiseco WIS Piston Sets - 4 Cyl to ensure proper function and longevity. Consulting a qualified technician guarantees meticulous assembly. This approach safeguards the advanced features of the piston set.
What performance improvement does the WIS Piston Sets - 4 Cyl provide over stock?
Expect a significant performance boost, particularly for racing competition with a score of 10. These pistons enhance combustion efficiency and power output. The advanced design delivers superior engine performance for demanding applications.
Is the Wiseco WIS Piston Sets - 4 Cyl worth upgrading from OEM?
Upgrading to Wiseco WIS Piston Sets - 4 Cyl is highly beneficial for engine performance enthusiasts. The forged 2618 aluminum construction and specific compression ratio offer substantial gains over OEM components. This transforms engine reliability and output for enthusiasts.
What are the key benefits of the ArmorGlide Skirt Coating on Wiseco pistons?
ArmorGlide Skirt Coating provides exceptional piston skirt durability and significantly reduced friction for improved longevity. This feature contributes to enhanced engine reliability under extreme conditions. Experience smoother operation and extended component life.
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.
Warranty Information
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2013 | Mazda | 3 | Mazdaspeed |
| 2006-2007 | Mazda | 6 | Mazdaspeed |
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Clearance Item: |
N |
MPN: |
K640M875 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Piston Sets - Forged - 4cyl |
Product Level: |
Race Only |
Racing Competition: |
10/10 |
Track / Autocross: |
9/10 |
Street Performance: |
7/10 |
Engine Performance: |
10/10 |
Drag Racing: |
9/10 |
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