Exterior Components› Body Panels and Components

United Engine & Machine Co

SINGLE HYPER PISTON 4.3L GM

$76.57

SKU: U00B S3411H.040

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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 Silv-O-Lite S3411H.040 is a set of hypereutectic aluminum pistons designed for a 4.040 inch bore. These pistons feature a dish-style head with four valve reliefs and a 1.540 inch compression height.

The pistons utilize an aluminum alloy high in silicon for increased strength and resistance to scuffing and seizure. They offer improved groove wear and are resistant to crown area cracking. The S3411H.040 pistons are sold individually and come with a press-fit wrist pin.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B S3411H.040

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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