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CP Pistons

CP Piston & Ring Set for Acura/Honda K24 w/K20A/A2 Bore 87.50mm Size +.50mm Compression Ratio 12

$967.30

On Backorder — Expected to ship by Apr 24, 2026

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CP Pistons forged piston set for Acura/Honda K24 w/K20A/A2. Bore 87.50mm, +.50mm size, 12:1 compression. Boost your engine's performance.

Key Features

  • Fits Acura/Honda K24 engines with K20A/A2 cylinder heads.
  • Forged from 2618-T61 aluminum for strength and durability.
  • Designed for an 87.50mm bore size.
  • Comes at a +.50mm oversize, intended for bored blocks.
  • Features a 12:1 compression ratio for improved power.
  • Includes pistons and rings for a complete set.
This piston set is designed for Acura and Honda K24 engines, specifically those utilizing K20A/A2 cylinder heads. It is intended for an 87.50mm bore with a +.50mm oversize.
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About this part

Product Details

Forged from 2618-T61 aluminum, these CP Pistons are built for serious performance in your Acura or Honda K24 engine, specifically those running a K20A/A2 cylinder head. This set is designed for an 87.50mm bore and comes at a +.50mm size, meaning it's intended for engines that have already been bored out to accommodate this larger piston size during a rebuild. The 12:1 compression ratio is a notable bump over stock, which will significantly increase power output when paired with the right supporting modifications and tuning.

CP Pistons are well-known for their robust construction, and this set is no exception. The 2618-T61 aluminum alloy offers excellent strength and durability, crucial for handling the increased cylinder pressures and temperatures that come with a higher compression ratio. Each piston is precision-machined to ensure a consistent fit and optimal performance. This set includes the pistons and rings, ready for installation into your K-series engine build. Remember, this kit is designed for a specific bore size and requires professional installation and engine tuning to achieve its full potential and ensure longevity.

When undertaking an engine build of this caliber, it's important to consider all the supporting components. Ensure your crankshaft, connecting rods, and cylinder head are prepared to handle the increased performance. Proper engine management and tuning are absolutely critical to safely utilize the higher compression ratio and forged pistons. This piston set is a solid choice for enthusiasts looking to extract maximum power from their K-series engine.

Specifications

Brand
CP Pistons
Manufacturer Part #
SC71471XA-4

Frequently Asked Questions

CP Piston & Ring Set for Acura/Honda K24 w/K20A/A2 Bore 87.50mm Size +.50mm Compression Ratio 12

$967.30