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 necessary for high-demand performance applications.

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 skirt width and using a shorter wrist pin, which also saves additional weight.

Are these pistons compatible with all LS engines?

This specific set is designed for LS engines with a 4.000-inch bore. While they are made for LS applications, you should always verify the bore size and other specifications against your engine build to ensure proper fitment.

JE Pistons Forged Piston Set 312052 - 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-t14-296257
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 from 2618 aluminum in the USA for high-performance LS engines.

Key Features

Fits LS engines with a 4.000 inch bore.
Set includes 8 pistons, wrist pins, and locks.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and weight.
May include an accumulator groove for improved ring seal and consistent power.
May include a skirt coating to reduce friction, wear, and noise.

This piston set is designed for LS engines with a 4.000 inch bore. Check manufacturer specifications to confirm compatibility with your specific engine build.

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Product Details

When you're building a high-performance LS engine, the pistons are a critical component that can make or break your build. This set of eight asymmetrical dish/inverted dome pistons from JE Pistons is designed to handle the demands of serious performance applications, whether you're on the drag strip or the dirt track. They are forged in the USA from 2618 aluminum, a material known for its high tensile strength, making them well-suited for engines that push the limits.

JE Pistons brings over 75 years of experience to the table with these pistons. They feature a proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and power loss by reducing skirt width and using a shorter wrist pin for added weight savings. Depending on the specific application, these pistons may also come with an accumulator groove to help control combustion gas pressure, leading to better ring seal and consistent power. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This set is specifically designed for LS engines with a 4.000-inch bore. The kit includes pistons, wrist pins, and locks, ready for installation. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For optimal performance and durability in your LS build, these JE Pistons offer a solid foundation.