Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM DISH/INV DM

$226.10

SKU: J001 312058R

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Description

The JE Pistons 312058R is a set of pistons designed for GM LS Gen III/IV engines. These pistons feature an asymmetrical FSR (Forged Side Relief) forging design, which maintains a larger skirt on the major thrust side and a smaller skirt on the minor thrust side to reduce friction and weight. They are constructed from 2618 forged aluminum for high tensile strength and are machined for 1.2mm, 1.5mm, and 3.0mm rings.

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Specifications

BrandJE Pistons
Part NumberJ001 312058R

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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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