Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM DOME

$226.10

SKU: J001 312098R

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Description

The JE Pistons 312098R is a single piston designed for Chevrolet LS Gen III/IV engines. It features an asymmetrical FSR (Forged Side Relief) design with a larger skirt on the major thrust side and a smaller, friction-reducing skirt on the minor thrust side. Precision CNC machining ensures a high-strength, lightweight, and durable piston.

This piston has a 4.075-inch bore diameter, a 1.304-inch compression height, and is designed for GM LS1 15-degree cylinder heads. It is constructed from 2618 aluminum and has a dome piston head type with two valve reliefs. The piston pin measures 0.927 inches in diameter and is made of 5115 material.

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Specifications

BrandJE Pistons
Part NumberJ001 312098R

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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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