What is the compression ratio of these pistons?

These JE Pistons feature an 11:1 compression ratio. This is higher than stock and designed to increase power and responsiveness when used in a performance-oriented engine build.

What material are these pistons made from?

The pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is crucial for handling the increased stresses in high-performance and racing applications.

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

This set is specifically designed for 4.6 4V Modular engines. However, due to variations in builds, it's always recommended to confirm the bore size, compression distance, and pin diameter match your specific engine requirements before purchase.

JE Pistons 4.6 4V Modular 11:1 Forged Piston Set 314638

Name: JE Pistons 4.6 4V MODULAR 11:1 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-4-6-4v-modular-11-1-set-of-8-pistons-t14-296522
Price: 950.07 USD
Availability: BackOrder

JE Pistons 4.6 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 4.6 4V MODULAR 11:1 Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Fits 4.6 4V Modular engines.
Set includes 8 forged pistons.
11:1 compression ratio for improved performance.
Forged in the USA using 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Features an accumulator groove (application dependent) to improve ring seal.

This piston set is designed for 4.6 4V Modular engines. Please verify compatibility with your specific engine build.

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Product Details

If you're rebuilding the top end of your 4.6 4V Modular engine for serious performance, a set of high-strength pistons is essential. These JE Pistons are built with an 11:1 compression ratio, designed to give your engine a noticeable boost in power and responsiveness when paired with the right setup. They are forged and machined entirely in the USA, using 2618 aluminum, which offers the high tensile strength needed for demanding performance applications.

JE Pistons has incorporated several advanced design features into this set. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and power loss by reducing skirt width, and it also saves weight with a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for more consistent power delivery. Some applications also feature a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, while also lowering operating noise.

This set includes eight pistons, each designed specifically for the 4.6 4V Modular engine to optimize performance and durability. They feature a dome top, a 3.701-inch bore, a 1.220-inch compression distance, and an 0.866-inch pin diameter. Please note that these pistons are not CARB approved and cannot be shipped to California. They are made entirely in the USA and are a solid option for builders looking for proven performance and reliability.