Specifications
- Brand
- CP Pistons
- Part #
- SC71474XA-4

CP Piston & Ring Set for Honda K24 w/ K20A/A2 - Bore 90.00mm - +3.0mm Size - Compression Ratio 12.5
$967.30
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CP Pistons forged piston set for Honda K24 w/ K20A/A2. 90.00mm bore, +3.0mm size, 12.5 CR.
Key Features
- Forged from 2618 aluminum for strength and heat resistance.
- Designed for Honda K24 engines with K20A/A2 cylinder heads.
- Features a 90.00mm bore size, which is +3.0mm (0.030 inches) over standard.
- Achieves a 12.5:1 compression ratio for improved performance.
- Includes a complete ring set for proper engine sealing.
- Not CARB approved; cannot ship to California.
Product Details
These CP Pistons are forged from 2618 aluminum, a strong material chosen for its ability to handle high temperatures and pressures found in performance engines. This specific set is designed for Honda K24 engines when used with K20A/A2 cylinder heads, featuring a 90.00mm bore and a +3.0mm size, meaning they are 0.030 inches larger than standard. The 12.5:1 compression ratio is a notable increase over stock, intended for builds aiming for more power and responsiveness.
The forging process creates a denser, more robust piston structure compared to cast pistons, making them well-suited for demanding applications where reliability under stress is critical. CP Pistons includes a full ring set with this kit, ensuring you have the necessary components for proper sealing and oil control. This set is a popular choice for engine builders looking to increase displacement and compression for a significant power gain.
When installing these pistons, it's important to follow the manufacturer's recommended clearances and lubrication procedures. Because these are an oversized piston, the cylinder walls will need to be bored and honed to the specified 90.00mm dimension. This set is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- CP Pistons
- Manufacturer Part #
- SC71474XA-4
Frequently Asked Questions
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CP Piston & Ring Set for Honda K24 w/ K20A/A2 - Bore 90.00mm - +3.0mm Size - Compression Ratio 12.5
