Engines and Components› Pistons and Piston Rings

JE Pistons

JE Pistons Ultra Series GM Gen III/IV LS 4.075in Bore/4in Stroke Set of 8 Pistons

$1,395.99

SKU: J001 360773

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The JE Pistons 360773 is a forged engine piston designed for GM LS3 engines with a 4.075" bore. It features an asymmetrical FSR forging design for improved strength and reduced friction, a flat top with -5cc, and is machined for 1.2mm, 1.5mm, 3.0mm rings. This set of 8 pistons is suitable for popular stroke and rod combinations while addressing reluctor wheel clearance issues.

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 360773

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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