Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM FT 4.100STRK

$211.10

SKU: J001 311993R

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Special Order
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Description

The JE Pistons 311993R is a single LS Gen III/IV piston designed for extreme applications. It features an asymmetrical FSR (Forged Side Relief) forging design with a larger skirt on the major thrust side and a smaller, friction-reducing skirt on the minor thrust side. This piston is precision CNC machined for high strength and durability.

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 311993R

Videos

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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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