What is the compression ratio for these pistons?

These JE Pistons feature a 9.5:1 compression ratio. This is achieved with a -28.0 cc dish volume on the piston, making them suitable for a wide range of performance applications.

Are these pistons suitable for a stock engine rebuild?

While these pistons are well-built and durable, they are specifically designed for high-demand performance applications. For a stock rebuild, you might consider pistons with a different compression ratio or construction depending on your goals.

What does the Forged Side Relief (FSR) design do?

The FSR design helps minimize friction and power loss by reducing the piston skirt width and utilizing a shorter wrist pin. This contributes to both weight savings and improved engine efficiency.

JE Pistons 5.4 2V Modular Piston Set 314662

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-t14-296544
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 for high-demand performance applications.

Key Features

Fits 5.4L 2V Modular engines.
Set includes 8 forged pistons.
Features a 9.5:1 compression ratio with a -28.0 cc dish volume.
Forged in the USA using 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes a 3.562-inch bore and 0.866-inch wrist pin.

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

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Product Details

If you're rebuilding the top end of your 5.4L 2V Modular engine for serious performance, a set of forged pistons is a critical component. These JE Pistons are built to handle the stresses of high-demand applications, offering a durable and reliable foundation for your build. They feature a 9.5:1 compression ratio, which is a popular choice for naturally aspirated or forced induction setups looking for a good balance of power and drivability.

Crafted from 2618 aluminum right here in the USA, these pistons are forged for exceptional tensile strength, essential for engines pushed beyond stock limits. JE Pistons incorporates their proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width and using a shorter wrist pin, saving weight where it counts. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, improving ring seal and maintaining consistent power delivery. Some applications also include a skirt coating to further reduce friction and wear on the cylinder walls, which can also lead to quieter operation.

This set includes eight pistons, each designed specifically for the 5.4L 2V Modular engine to optimize performance and durability. The kit comes with pistons featuring a 3.562-inch bore and a -28.0 cc dish volume, contributing to the 9.5:1 compression ratio. Remember that these pistons are not CARB approved and cannot be shipped to California. For a robust and proven piston solution for your performance build, JE Pistons offers a well-built option with a long track record in racing.