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Wiseco

Wiseco Honda K-Series +10.5cc Dome 1.181x87.0mm Piston Shelf Stock Kit

$776.99

On Backorder — Expected to ship by May 30, 2026

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Wiseco Honda K-Series +10.5cc Dome 1.181x87.0mm Piston Shelf Stock Kit. Forged from 2618 aluminum for severe duty race builds.

Key Features

  • Fits Honda K-Series K20A engines with a 87.00 mm bore.
  • Forged and machined in the USA from 2618 aluminum for improved tensile strength.
  • Features a +10.5cc dome volume and 30.00 mm compression height.
  • Includes precision ring grooves, anti-detonation grooves, and enhanced ring seal features.
  • ArmorGlide skirt coating reduces friction, resists seizure, and quiets operation.
  • Designed and built to withstand heavy to severe duty performance applications.
This piston set is designed for Honda K20A engines. Please verify compatibility with your specific vehicle's engine configuration.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're building a high-performance Honda K-Series engine for serious racing or severe duty applications, a strong set of pistons is crucial. This Wiseco Professional Series piston set is designed to handle the demands of competition, offering improved tensile strength and durability. Each piston is forged and machined in the USA from 2618 aluminum, a material known for its ability to withstand high stresses and temperatures found in performance engines.

These pistons feature a +10.5cc dome volume and a bore size of 87.00mm, with a compression height of 30.00mm. They come equipped with precision ring grooves, anti-detonation grooves, and additional features to improve ring seal, all of which are vital for maintaining compression and preventing detonation under extreme conditions. The ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, contributing to overall engine longevity and performance. The fully machined crown and forced pin oiling further enhance their capability for heavy to severe duty use.

This set includes four pistons, designed as a shelf stock replacement for Honda K20A engines. While these pistons are built for extreme performance, please note they are not CARB approved and cannot be shipped to California. For a complete build, ensure you have all necessary supporting components and refer to manufacturer instructions for proper installation.

Specifications

Brand
Wiseco
Manufacturer Part #
K650M87AP
UPC
00193564089731

Frequently Asked Questions

Wiseco Honda K-Series +10.5cc Dome 1.181x87.0mm Piston Shelf Stock Kit

$776.99