What material are these JE Pistons made from?

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

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

The FSR forging design helps to minimize friction and power loss. It achieves this by using a reduced skirt width and a shorter wrist pin, which also saves weight.

Are these pistons compatible with all LS engines?

This set is designed for 8-cylinder LS engines with a 4.130 inch bore. While they are specific to LS applications, it's always best to confirm the bore size and specific engine model compatibility before purchase.

JE Pistons Forged Piston Set 312035 - LS Engines

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-t14-296244
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 in the USA from 2618 aluminum for high-demand LS engine builds.

Key Features

Fits 8-cylinder LS engines with a 4.130 inch bore.
Forged in the USA from 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes an accumulator groove (depending on application) to improve ring seal.
Skirt coating (depending on application) reduces friction and wear.
Dish volume is -22.00cc.

This piston set is designed for 8-cylinder LS engines with a 4.130 inch bore. Please verify compatibility with your specific engine configuration.

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Product Details

If you're building a high-performance LS engine, you need pistons that can handle the stress. This set from JE Pistons is designed specifically for LS applications, offering a robust solution for demanding builds. They're forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is crucial when you're pushing an engine hard.

JE Pistons has been making performance pistons for over 75 years, and they've put that experience into this set. You'll find features like their proprietary Forged Side Relief (FSR) forging design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to help manage combustion gas pressure, leading to better ring seal and consistent power. Some applications also get a skirt coating to further reduce friction and wear on the cylinder walls, which can also quiet down engine noise.

This set includes eight pistons, each with a 4.130-inch bore and a -22.00cc dish volume. The kit comes with everything you need to get these pistons installed, including the wrist pins. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For serious LS engine builds, these JE Pistons offer a well-built foundation.