Engines and Components› Pistons and Piston Rings

JE Pistons

LS ASYM 3.900 STRK DM

$1,017.77

SKU: J001 324012

In Stock
In Stock
Ships by Jun 8
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

JE Pistons' new GM LS Inverted dome Asymmetrical FSR (Forged Side Relief) forging design accommodates popular stroke and rod combinations while eliminating reluctor wheel clearance issues. The asymmetrical design features a larger skirt on the major thrust side for strength and a smaller skirt on the minor thrust side for reduced friction, resulting in a high-strength, lightweight piston. Machined for 1.2mm, 1.5mm, 3.0mm rings. Includes accumulator grooves, double pin oilers, offset wrist pin #927-2250-15-51C (106g), and round wire locks #927-073-MW.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 324012

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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