Exterior Components› Body Panels and Components

United Engine & Machine Co

SINGLE CAST PISTON 3.9L CHRY

$65.55

SKU: U00B S1281.030

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Description

The Silv-O-Lite 1281 piston is a cast 332 alloy piston designed for engine rebuilding. It features a flat top crown, a centered floating pin configuration, and a 6.9:1 compression ratio.

This piston has a bore diameter of 3.437 inches (87.3 mm) and a compression height of 1.978 inches (50.2 mm). It is manufactured by Silv-O-Lite, a brand of United Engine & Machine Co.

Silv-O-Lite has been producing pistons for 100 years, with in-house manufacturing processes including alloying, casting, heat treating, and diamond machining. They offer various coatings for crowns, ring grooves, and skirts.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B S1281.030

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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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