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  • Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
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Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011

HD-K20-F86
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$3,150.00
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$3,150.00
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Honda Civic Type R Integra K20A Forged Piston Kit 86mm 2006-2011
Description

Honda K20A/K20Z Forged Piston Kit — 86.00mm | 12.5:1 High Compression, Naturally Aspirated

More compression. More response. More redline.

Built for the naturally aspirated purist, this forged piston kit is engineered specifically for K20A/K20Z platforms chasing maximum output without forced induction. A 12.5:1 compression ratio unlocks the throttle response and top-end power NA builds are known for, while forged 4032 aluminum construction ensures the strength to handle sustained high-RPM operation reliably.

Whether you're building a track-focused Type R or refreshing a high-mileage K20 with a serious upgrade, this kit is designed to extract everything the engine has to give.

Why Choose This Kit

  • 12.5:1 Compression Ratio — Purpose-built for NA performance, maximizing power and throttle response without boost
  • Forged 4032 Aluminum — Handles sustained high-RPM stress with greater strength than stock cast pistons
  • High-Revving Reliability — Engineered for engines that live near redline, not just pass through it
  • Direct Fit — Matched to K20A/K20Z bore and pin specs for a precise, reliable build

Fitment

  • Honda Civic Type R (FD2/FN2)
  • Honda Integra Type R (DC5)
  • Honda Civic Sport

Confirm your engine code (K20A vs. K20Z) and fuel octane requirements before running this compression ratio.

Specifications

Spec Detail
Bore Size 86.00mm (Standard)
Material 4032 Forged Aluminum
Compression Ratio 12.5:1
Pin Size 22.0mm

Installation Notice

⚠️ This is a performance engine component. Professional installation is strongly recommended. High compression builds require careful attention to tuning, fuel quality, and ignition timing — installation and tuning by an experienced engine builder is essential.

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