What materials are these JE Pistons made from?

These JE Pistons are forged from 2618 aluminum. This material is selected for its high tensile strength, making it suitable for high-demand performance engine applications.

What specific engine modifications do these pistons support?

These pistons are designed for 5.4L 4V Modular engines and are intended for performance builds aiming for a 9.5:1 compression ratio. Features like the FSR design and potential skirt coatings are aimed at improving durability and reducing friction in high-stress environments.

Are these pistons compatible with all 5.4L 4V Modular engines?

While designed for the 5.4L 4V Modular engine platform, specific fitment can depend on the exact engine configuration and other components used in your build. It is recommended to verify compatibility with your engine builder or consult JE Pistons' detailed specifications.

JE Pistons 5.4 4V Modular 9.5:1 Piston Set 314692

Name: JE Pistons 5.4 4V MODULAR 9.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-5-4-4v-modular-9-5-1-set-of-8-pistons-t14-296573
Price: 950.07 USD
Availability: BackOrder

JE Pistons 5.4 4V 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 4V MODULAR 9.5:1 Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

This is a set of 8 pistons for 5.4L 4V Modular engines.
Features a 9.5:1 compression ratio with a -17.1cc dish volume.
Forged in the USA from 2618 aluminum for high tensile strength.
Includes proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
May include an accumulator groove to reduce combustion gas pressure and improve ring seal.
May feature a skirt coating to reduce friction and wear.

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Product Details

This is a set of eight JE Pistons, designed for 5.4L 4V Modular engines with a 9.5:1 compression ratio. These pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is essential for engines built for demanding performance applications. Each piston is machined to precise specifications, including a 3.552-inch bore and a 1.320-inch compression distance, with a -17.1cc dish volume to achieve the target compression ratio.

JE Pistons incorporates advanced design features to enhance durability and performance. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and reduce weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove to reduce combustion gas pressure, which helps prevent ring flutter and improves the seal for consistent power delivery. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer component life.

When rebuilding or upgrading your 5.4L 4V Modular engine for high-performance use, these JE Pistons offer a well-built solution. They are engineered specifically for this engine and application to provide an optimized balance of performance and durability, proven in various racing environments. Please note that this part is not CARB approved and cannot be shipped to California.