What material are these pistons made from?

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is necessary for high-demand performance engine applications.

What is the purpose of the Forged Side Relief (FSR) design?

The FSR design helps to minimize friction and power loss by reducing the piston skirt width. This, along with a shorter wrist pin, also contributes to saving weight on the piston assembly.

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

These pistons are designed specifically for 5.4L 4V Modular engines and offer an 11:1 compression ratio. It's important to verify that this specific bore size and compression ratio match your engine build plans and other components.

JE Pistons 5.4 4V Modular 11:1 Piston Set 314699

Name: JE Pistons 5.4 4V MODULAR 11:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-5-4-4v-modular-11-1-set-of-8-pistons-t14-296580
Price: 950.07 USD
Availability: BackOrder

JE Pistons 5.4 4V MODULAR 11:1 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 11:1 Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Set of 8 forged pistons for 5.4L 4V Modular engines.
11:1 compression ratio.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a 3.572-inch bore size.
Piston dish volume is -5.8cc.

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Product Details

If you're building a high-performance 5.4L 4V Modular engine, a solid set of pistons is crucial. This set of 8 pistons from JE Pistons is designed specifically for that application, offering an 11:1 compression ratio to help you get the most out of your build. JE Pistons has been making forged racing pistons for over 75 years, and they engineer, forge, and machine these right here in the USA.

These pistons are forged from 2618 aluminum, a material known for its high tensile strength, which is exactly what you need for demanding performance applications. They feature JE's proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width. This design, along with a shorter wrist pin, also saves weight. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, helping to prevent ring flutter and improve ring seal for consistent power. A skirt coating, if included for your application, further reduces friction and wear on the piston skirts and cylinder walls, while also helping to quiet down operation.

This set includes pistons with a 3.572-inch bore and a -5.8cc dish volume, designed for an 11:1 compression ratio. Please note that these pistons are not CARB approved and cannot be shipped to California. For a serious engine build, JE Pistons are a well-known choice that has proven its performance on the track time and time again.