Wiseco K631M86 Forged Piston Kit — Fits Acura RSX Type-S K20 K24 86mm

SKU: WISK631M86
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wiseco

Wiseco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wiseco lineup with fast shipping and expert fitment support — order with confidence.

Wiseco K631M86 Forged Piston Kit for Acura RSX Type-S (K20/K24)

Unleash the potential of your Acura RSX Type-S with the Wiseco K631M86 Forged Piston Kit. Engineered and manufactured in the USA, these pistons are forged from high-strength 2618 aluminum, providing the durability and performance required for demanding K20 and K24 engine builds. This kit features a flat top design and an 86mm bore, making it a direct fit for the specified models.

Key Features:

  • High-Performance Forging: Constructed from 2618 aluminum for superior strength and reliability.
  • ArmorGlide™ Skirt Coating: Reduces friction, minimizes wear, and ensures quieter operation.
  • Precision Machining: Features a fully machined crown, precision ring grooves, an anti-detonation groove, and enhanced ring seal for optimal combustion.
  • Forced Pin Oiling: Ensures consistent lubrication to the piston pin for extended engine life.
  • Optimized for K-Series: Designed specifically for K20 and K24 engines found in the Acura RSX Type-S.

This Wiseco piston kit is an essential upgrade for any K-series enthusiast looking to enhance their engine's power and longevity. Whether for street, track, or drag racing, these pistons offer the performance you need. Find quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2006 Acura RSX Type-S

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wiseco

Wiseco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wiseco lineup with fast shipping and expert fitment support — order with confidence.

Wiseco K631M86 Forged Piston Kit for Acura RSX Type-S (K20/K24)

Unleash the potential of your Acura RSX Type-S with the Wiseco K631M86 Forged Piston Kit. Engineered and manufactured in the USA, these pistons are forged from high-strength 2618 aluminum, providing the durability and performance required for demanding K20 and K24 engine builds. This kit features a flat top design and an 86mm bore, making it a direct fit for the specified models.

Key Features:

  • High-Performance Forging: Constructed from 2618 aluminum for superior strength and reliability.
  • ArmorGlide™ Skirt Coating: Reduces friction, minimizes wear, and ensures quieter operation.
  • Precision Machining: Features a fully machined crown, precision ring grooves, an anti-detonation groove, and enhanced ring seal for optimal combustion.
  • Forced Pin Oiling: Ensures consistent lubrication to the piston pin for extended engine life.
  • Optimized for K-Series: Designed specifically for K20 and K24 engines found in the Acura RSX Type-S.

This Wiseco piston kit is an essential upgrade for any K-series enthusiast looking to enhance their engine's power and longevity. Whether for street, track, or drag racing, these pistons offer the performance you need. Find quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2006 Acura RSX Type-S

Product Details

Product Description

About Wiseco

Wiseco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wiseco lineup with fast shipping and expert fitment support — order with confidence.

Wiseco K631M86 Forged Piston Kit for Acura RSX Type-S (K20/K24)

Unleash the potential of your Acura RSX Type-S with the Wiseco K631M86 Forged Piston Kit. Engineered and manufactured in the USA, these pistons are forged from high-strength 2618 aluminum, providing the durability and performance required for demanding K20 and K24 engine builds. This kit features a flat top design and an 86mm bore, making it a direct fit for the specified models.

Key Features:

  • High-Performance Forging: Constructed from 2618 aluminum for superior strength and reliability.
  • ArmorGlide™ Skirt Coating: Reduces friction, minimizes wear, and ensures quieter operation.
  • Precision Machining: Features a fully machined crown, precision ring grooves, an anti-detonation groove, and enhanced ring seal for optimal combustion.
  • Forced Pin Oiling: Ensures consistent lubrication to the piston pin for extended engine life.
  • Optimized for K-Series: Designed specifically for K20 and K24 engines found in the Acura RSX Type-S.

This Wiseco piston kit is an essential upgrade for any K-series enthusiast looking to enhance their engine's power and longevity. Whether for street, track, or drag racing, these pistons offer the performance you need. Find quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2006 Acura RSX Type-S

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