What is the compression ratio of this piston set?

This JE Pistons set is designed to achieve an 8.5:1 compression ratio when installed in the appropriate Nissan CA18DET engine configuration. This is a common ratio for performance builds that utilize forced induction.

What is included in this piston kit?

The kit includes a set of four forged pistons, high-quality wrist pins, wrist pin locks, and JE Pro Seal premium piston rings. This provides a complete package for piston replacement during an engine rebuild.

Are these pistons suitable for a stock engine rebuild?

While these are high-performance forged pistons, they can be used in a stock engine rebuild if you are looking for increased durability and the ability to handle more power. However, they are primarily designed for modified or performance-oriented engines.

JE Pistons Forged Piston Set 302301 - CA18DET

Name: JE Pistons NIS CA18DET 8.5:1KIT Set of 4 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-nis-ca18det-8-5-1kit-set-of-4-pistons-t14-296074
Price: 849.99 USD
Availability: BackOrder

JE Pistons NIS CA18DET 8.5:1KIT Set of 4 Pistons

$849.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

JE Pistons NIS CA18DET 8.5:1KIT Set of 4 Pistons

Key Features

Fits Nissan CA18DET engines.
Set includes four forged pistons, wrist pins, locks, and JE Pro Seal premium piston rings.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Constructed from 2618 aluminum for high tensile strength in performance applications.
Achieves an 8.5:1 compression ratio with a flat-top piston design.
Piston bore size is 3.307 inches.

This piston set is designed for the Nissan CA18DET engine. It is not CARB approved and cannot be shipped to California.

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Product Details

If you're rebuilding the engine in your Nissan CA18DET, a solid set of forged pistons is crucial for handling increased performance demands. This JE Pistons 8.5:1 compression ratio kit is built specifically for that engine, offering a well-built foundation for a high-performance build. JE Pistons has been making forged pistons for over 75 years, and they engineer and machine these right here in the USA using 2618 aluminum, which gives them the high tensile strength needed for demanding applications.

What sets these pistons apart is their proprietary Forged Side Relief (FSR) design. This minimizes friction and power loss by reducing skirt width, and it also saves weight with a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, which improves ring seal and keeps power consistent. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, while also making the engine run quieter. This kit comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, so you have everything you need to get started.

This set is designed for a 3.307-inch bore and a flat-top piston profile, achieving an 8.5:1 compression ratio. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For serious engine builds, JE Pistons are a proven choice, trusted time and again on the track.