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 applications.

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary forging from JE Pistons that minimizes friction and power loss by reducing skirt width. It also saves weight with a shorter wrist pin.

Are these pistons compatible with all 5.4 3V engines?

This set is designed for the 5.4 3V Modular engine with a 9.5:1 compression ratio. It's important to confirm that this specific compression ratio and bore size (3.622 inches) match your engine build requirements.

JE Pistons 5.4 3V 9.5:1 Forged Piston Set 314680

Name: JE Pistons 5.4 3V MODULAR 9.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-5-4-3v-modular-9-5-1-set-of-8-pistons-t14-296561
Price: 950.07 USD
Availability: BackOrder

JE Pistons 5.4 3V 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 3V 9.5:1 Set of 8 Pistons. Made in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 5.4 3V Modular engines with a 9.5:1 compression ratio.
Forged in the USA using 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Features a 3.622 inch bore and a 1.320 inch compression distance.
Includes a 0.866 inch wrist pin.
Designed specifically for each engine and use application for optimized performance and durability.

This piston set is designed for the 5.4 3V Modular engine. Please verify compatibility with your specific engine build.

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Product Details

JE Pistons is known for its extensive experience in creating high-performance forged pistons, and this set for the 5.4 3V Modular engine is a prime example. If you're building a performance engine that needs to handle serious stress, these pistons are built to last. They are forged and machined entirely in the USA, using 2618 aluminum, which gives them the strong tensile strength needed for demanding applications.

This set features JE Pistons' proprietary Forged Side Relief (FSR) design. This means the skirt width is reduced, which helps minimize friction and power loss, while also saving weight thanks to a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to improve ring seal and keep power consistent. Some applications also include a skirt coating that works to reduce friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

These pistons are designed specifically for the 5.4 3V engine and a 9.5:1 compression ratio, aiming for an optimized balance of performance and durability. They come as a set of 8, ready for your build. Keep in mind these are not CARB approved and cannot be shipped to California.