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Wiseco Professional Series Forged Pistons 2002-2006 Acura/Honda K20 RSX-S 86.5mm Bore .020 Oversize 11.0:1 CR K634M865

$732.99

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Wiseco Professional Series Forged Pistons 2002-2006 Acura/Honda K20 RSX-S 86.5mm Bore .020 Oversize 11.0:1 CR K634M865

$732.99

$732.99

Fits select 2002-2006 Acura RSX Type-S and Honda K20 engines.

Wiseco Professional Series forged racing pistons are engineered for the high-demand environment of performance K-series builds. Machined in the USA from 2618 aluminum alloy for superior tensile strength, these pistons are designed to withstand the stresses of heavy-duty racing and high-performance naturally aspirated applications. Each piston features a fully machined crown and an 11.0:1 compression ratio for optimized combustion efficiency.

To ensure longevity and performance, Wiseco utilizes ArmorGlide skirt coating to reduce friction and minimize cylinder wall wear. The inclusion of forced pin oiling and precision-machined ring grooves provides a superior ring seal and consistent lubrication under high-load conditions.

  • Manufacturer Part Number: K634M865
  • Bore Size: 86.5mm (.020 Oversize)
  • Compression Ratio: 11.0:1
  • Piston Design: Dome Dish
  • Material: High-strength forged 2618 aluminum
  • Coating: ArmorGlide skirt coating for friction reduction
  • Features: Anti-detonation grooves and forced pin oiling
  • Includes: Premium piston rings and wrist pins

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