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Wiseco

Wiseco Honda K-Series +10.5cc Dome 1.181x89.0mm Piston Shelf Stock Kit

$776.99

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Wiseco forged piston set for Honda K-Series engines. Built for severe duty race builds with improved tensile strength and friction reduction.

Key Features

  • This kit includes four Wiseco forged pistons.
  • Made from 2618 aluminum for improved tensile strength.
  • Pistons are forged and machined in the USA.
  • Features a +10.5cc dome and an 89.00 mm bore.
  • Includes precision ring grooves, anti-detonation groove, and additional ring seal features.
  • ArmorGlide skirt coating reduces friction and resists seizure.
This piston set is designed for Honda K-Series K20A engines with an 89.00 mm bore. Please verify compatibility with your specific engine build.

⚠️ 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

This kit includes four Wiseco forged pistons, designed specifically for Honda K-Series engines. These aren't your average pistons; they're built from 2618 aluminum, forged and machined right here in the USA, giving them improved tensile strength for demanding builds. The pistons feature a +10.5cc dome and a bore size of 89.0mm, with a compression height of 30.00mm and a 0.866 inch pin diameter. They're intended for sport compact applications and are ready for heavy to severe duty race builds.

Wiseco has packed these pistons with features to handle serious performance. You'll find precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal. The crown is fully machined, and they incorporate forced pin oiling to keep things well-lubricated under stress. Plus, they come with an ArmorGlide skirt coating that helps reduce friction, makes operation quieter, and resists seizure, all contributing to a more durable and efficient engine.

Because these are designed for high-performance racing, they are not CARB approved and cannot be shipped to California. If you're building a K-Series engine for serious competition, these Wiseco pistons are a solid option to consider for their robust construction and advanced features.

Specifications

Brand
Wiseco
Manufacturer Part #
K650M89AP
UPC
00193564089755

Frequently Asked Questions

Wiseco Honda K-Series +10.5cc Dome 1.181x89.0mm Piston Shelf Stock Kit

$776.99