What is the bore size and wrist pin diameter for this piston set?

This piston set features a 3.701-inch bore. The wrist pin diameter is 0.866 inches.

Are these pistons suitable for a street-driven vehicle?

With a 9.5:1 compression ratio and features like skirt coating and FSR design, these pistons offer a good balance for performance builds that still see street use. However, always consult with your engine builder for specific application recommendations.

What does the 'Not CARB approved' note mean?

This means the pistons do not meet the emissions standards set by the California Air Resources Board (CARB). Consequently, they cannot be legally sold or shipped to California for use in vehicles registered in that state.

JE Pistons 5.4 2V Modular 9.5:1 Piston Set 314665

Name: JE Pistons 5.4 2V MODULAR 9.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-5-4-2v-modular-9-5-1-set-of-8-pistons-t14-296547
Price: 950.07 USD
Availability: BackOrder

JE Pistons 5.4 2V MODULAR 9.5:1 Set of 8 Pistons

$950.07

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 5.4 2V MODULAR 9.5:1 Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 5.4L 2V Modular engines.
Set includes 8 forged pistons.
Compression ratio is 9.5:1.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
May include an accumulator groove for improved ring seal and reduced fluttering.

This piston set is designed for 5.4L 2V Modular engines. Please verify compatibility with your specific engine configuration.

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Product Details

If you're rebuilding the engine in your 5.4L 2V Modular Ford, choosing the right pistons is crucial for achieving your performance goals. This set of eight JE Pistons is designed for a 9.5:1 compression ratio, making them a solid choice for builds looking for a balance of power and drivability without going too extreme on compression.

JE Pistons has been a leader in forged piston technology for decades, and this set reflects that experience. They're forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is exactly what you need when you're pushing an engine hard. The design includes a proprietary Forged Side Relief (FSR) forging, which helps reduce friction and skirt wear, saving a bit of weight in the process. Depending on the specific application, these pistons may also feature an accumulator groove to help reduce combustion gas pressure and improve ring seal, along with a skirt coating to further cut down on friction and noise.

This kit includes everything needed for an 8-cylinder engine, with a 3.701-inch bore and a 0.866-inch wrist pin diameter. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For a high-performance engine build where durability and optimized power are key, this set of JE Pistons is a well-built option.