Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM DM 4000STRKR

$226.10

SKU: J001 312107R

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Description

The JE Pistons 312107R is a high-performance piston designed for Chevrolet LS Gen III/IV engines. It features a 4.010-inch bore and a 1.115-inch compression height with a dome design. This piston is constructed from 2618 aluminum for high tensile strength, suitable for demanding performance applications.

Key features include JE Pistons' proprietary Forged Side Relief (FSR) forging design, which minimizes friction and power loss. It also incorporates skirt coating to reduce friction and wear, and an accumulator groove to improve ring seal and consistent power delivery. These pistons are manufactured 100% in the USA.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 312107R

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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