What material are these JE Pistons made from?

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

Are the wrist pins and rings included with this piston set?

The manufacturer's description indicates this is a piston kit. Typically, wrist pins and rings are sold separately for performance builds like this. It's best to confirm what is included before ordering.

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

The FSR design minimizes friction and power loss by reducing skirt width and using a shorter wrist pin. This also contributes to saving weight on the pistons.

JE Pistons LS Piston Set 312054 - Forged Aluminum

Name: JE Pistons LS ASYM DISH/INV DM Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-ls-asym-dish-inv-dm-set-of-8-pistons-t14-296259
Price: 975.74 USD
Availability: BackOrder

JE Pistons LS ASYM DISH/INV DM Set of 8 Pistons

$975.74

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 LS ASYM DISH/INV DM Set of 8 Pistons. Forged 2618 aluminum construction for high-demand performance.

Key Features

Set includes 8 pistons designed for LS engines with a 4.010 inch bore.
Constructed from 2618 aluminum, providing high tensile strength for high-demand performance applications.
Features JE Pistons' proprietary Forged Side Relief (FSR) design for reduced friction and weight savings.
May include an accumulator groove to improve ring seal and reduce combustion gas pressure.
Optional skirt coating reduces friction and wear, while also lowering operating noise.
Pistons are made 100% in the USA.

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Product Details

Forged from 2618 aluminum, these JE Pistons are built for serious performance in LS engines. This material choice gives them the high tensile strength needed for demanding applications where stock pistons just won't cut it. They're made 100% in the USA, drawing on over 75 years of JE Pistons' experience in crafting high-performance engine components.

JE Pistons uses a proprietary Forged Side Relief (FSR) forging design that helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, which also saves weight. Depending on the specific application, these pistons can also feature an accumulator groove to help manage combustion gas pressure, leading to better ring seal and more consistent power delivery. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, while also quieting down engine noise.

This set is designed specifically for LS engines with a 4.010 inch bore. It includes 8 pistons, each with an inverted dome/dish design. Remember, these are not CARB approved and cannot be shipped to California. For a complete build, you'll want to ensure you have the correct wrist pins and rings, as they are typically sold separately.