Engines and Components› Pistons and Piston Rings

JE Pistons

GM LS1 FT 6.125 ROD

$173.33

SKU: J001 321243L

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Description

The JE Pistons 321243L is a single engine piston designed for Chevrolet LS Gen III/IV engines. It features a flat top design with a 3.898-inch bore and a 1.315-inch compression distance. This piston is forged from 2618 aluminum in the USA, providing high tensile strength for demanding performance applications.

JE Pistons has over 75 years of experience in creating premium forged pistons for domestic applications. Engineered and machined in the USA, these pistons are optimized for durability and performance, proven in various racing environments.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandJE Pistons
Part NumberJ001 321243L

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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