What is the bore size and piston volume for this set?

This piston set features a 4.155-inch bore. The inverted dome/dish design has a volume of 33.60 cc.

Are these pistons suitable for street use or only racing?

JE Pistons are designed for high-demand performance applications, including racing. Features like skirt coating and accumulator grooves can help reduce noise and improve ring seal, which are beneficial for street use as well, provided the overall engine build is appropriate for the intended use.

What does 'Not CARB approved' mean?

CARB (California Air Resources Board) approval is required for certain aftermarket parts sold in California. This means these pistons cannot be legally shipped to or installed on vehicles registered in California due to emissions regulations.

JE Pistons Forged Piston Set 312050 - 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-t14-296256
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 for high-demand LS engine builds.

Key Features

Fits LS engines.
Set includes 8 forged pistons.
Forged from 2618 aluminum for high tensile strength in performance applications.
Features proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes an accumulator groove (application dependent) to improve ring seal.
Skirt coating (application dependent) reduces friction, wear, and operating noise.

This piston set is designed for LS engines. Please verify compatibility with your specific engine build before purchase.

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're building a high-performance LS engine, a solid set of pistons is crucial. This set from JE Pistons, part number 312050, is designed specifically for LS applications and is forged from 2618 aluminum. This material offers the high tensile strength needed for demanding performance builds, ensuring durability when you push your engine hard.

JE Pistons brings over 75 years of experience to their forged piston designs, and these are no exception. They feature a proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and power loss by reducing skirt width. This design also saves weight by using a shorter wrist pin. Depending on the specific application, these pistons may also include an accumulator groove to help reduce 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, contributing to quieter operation.

Every part of this piston set is made in the USA, from the initial forging to the final machining. This commitment to domestic manufacturing ensures a high level of quality control. The pistons have a 4.155-inch bore and feature an inverted dome/dish design, with a volume of 33.60 cc. Please note that this piston set is not CARB approved and cannot be shipped to California.