What materials are these pistons made from?

These pistons are forged from 2618 aluminum. This material is selected for its high tensile strength, which is necessary for engines operating under high-demand performance conditions.

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

The FSR design helps to minimize friction and power loss. It achieves this by reducing the piston skirt width and using a shorter wrist pin, which also contributes to saving weight.

Are these pistons compatible with all 4.6 4V Modular engines?

These pistons are specifically designed for the 4.6 4V Modular engine. However, it's important to verify compatibility with your specific engine build and application, as variations may exist. This set is not CARB approved and cannot be shipped to California.

JE Pistons 4.6 4V Modular 9.5:1 Piston Set 314630

Name: JE Pistons 4.6 4V MODULAR 9.5:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-4-6-4v-modular-9-5-1-set-of-8-pistons-t14-296514
Price: 950.07 USD
Availability: BackOrder

JE Pistons 4.6 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 4.6 4V MODULAR 9.5:1 Set of 8 Pistons. Get a set of 8 forged pistons made in the USA for high-demand performance.

Key Features

This product includes a set of 8 forged pistons.
Constructed from 2618 aluminum for high tensile strength in performance applications.
Features a 9.5:1 compression ratio and a 3.562-inch bore size.
Utilizes a proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a 0.866-inch wrist pin and a 1.220-inch compression distance.
May include an accumulator groove to reduce ring flutter and improve ring seal.

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Product Details

This product includes a set of eight forged pistons, designed for the 4.6 4V Modular engine with a 9.5:1 compression ratio. These pistons feature a 3.562-inch bore and a 1.220-inch compression distance, utilizing a 0.866-inch wrist pin. They are constructed from 2618 aluminum, a material chosen for its high tensile strength, making them well-suited for high-demand performance applications where durability is critical.

JE Pistons brings over 75 years of experience to these forged pistons, which are engineered and machined entirely in the USA. They incorporate a proprietary Forged Side Relief (FSR) design that helps minimize friction and power loss by reducing skirt width, while also saving weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, which helps prevent ring flutter and improve ring seal for consistent power. Some applications also feature a skirt coating designed to reduce friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

These pistons are specifically designed for the 4.6 4V Modular engine and its intended use, aiming for optimized performance and durability. Please note that this product is not CARB approved and cannot be shipped to California.