Wiseco

Wiseco Acura K20 K24 FLAT TOP 1.181X86MM Piston Shelf Stock Kit - K631M86

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SKU:
WISK631M86
UPC:
00193564077417
MPN:
K631M86
Availability:
Regularly stocked product
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$613.99
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Description

Are Wiseco pistons forged or cast?
Wiseco Professional Series Piston Sets - Forged - 4cyl are forged from high-strength aluminum alloys to withstand extreme racing conditions and demands.

Can I install these pistons myself?
Professional installation is recommended for these Piston Sets - Forged - 4cyl to ensure precise fitment and optimal engine performance.

Wiseco Piston Sets - Forged - 4cyl are engineered for peak race performance, boasting a perfect 10 score for Racing Competition. Featuring Professional Series forged racing pistons and precision ring grooves, these sets deliver ultimate engine strength for extreme demands. Trust Wiseco for uncompromising power and reliability in your 4-cylinder build.

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 performance standards expected from the brand. The pistons themselves earn strong marks for reliability and durability, though some builders caution that Wiseco cranks have experienced failures and should be avoided. Users report modest but real power gains when upgrading to higher compression options, typically adding a few horsepower to their builds. The consensus points to these piston sets as a smart choice for engine builders seeking proven quality without premium pricing, backed by Wiseco's long-standing reputation in the performance market.

Key Features

  • Professional Series forged racing pistons
  • Precision ring grooves
  • anti-detonation groove
  • additional ring seal improving features
  • ArmorGlide Skirt Coating
  • Forced pin oiling

Why Choose the WIS Piston Sets - 4 Cyl

Delivers ultimate engine strength for extreme racing demands.

Achieves superior combustion control for maximum power output.

Provides enhanced ring seal for improved engine efficiency and longevity.

Transforms friction into speed with advanced skirt coating technology.

Who Is This For?

Racing Competition — 10/10
Engineered for peak race performance, forged racing pistons.

Track / Autocross — 9/10
Designed for high-performance racing applications.

Drag Racing — 9/10
Forged pistons built for demanding racing conditions.

Street Performance — 7/10
Forged construction and performance features enhance engine.

Engine Performance — 10/10
Forged racing pistons engineered for peak performance.

Frequently Asked Questions

Will these Wiseco forged pistons fit my 2004 Acura RSX?

These Wiseco forged pistons are precisely engineered for the 2002-2006 Acura RSX model years, ensuring a perfect fit for your vehicle. The piston set is designed to integrate seamlessly with the specified RSX engine. Installation confidence is high for this direct fitment.

How difficult is it to install these Wiseco 4-cylinder forged pistons?

Professional installation is strongly recommended for these Wiseco 4-cylinder forged pistons to guarantee optimal performance and longevity. This advanced installation type ensures the precision required for racing applications. Confirming with a qualified technician is paramount for a successful build.

What is the primary performance advantage of these Wiseco pistons for racing?

These Wiseco Professional Series forged racing pistons deliver ultimate engine strength for extreme racing demands, achieving a perfect score of 10 for Racing Competition. Their forged construction is engineered for peak race performance. Experience maximum power output with this dedicated racing component.

What makes the skirt coating on these Wiseco pistons beneficial?

The ArmorGlide Skirt Coating on these Wiseco pistons transforms friction into speed, enhancing engine efficiency and longevity. This advanced feature contributes to improved engine performance by reducing parasitic drag. Benefit from enhanced ring seal and reduced wear with this innovative technology.

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.

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Warranty Information

This Part Fits:

YearMakeModelSubmodel
2002-2006AcuraRSXType-S
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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
K631M86
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
Drag Racing:
9/10
Street Performance:
7/10
Engine Performance:
10/10
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