Exterior Components› Body Panels and Components

United Engine & Machine Co

CHRYSLER 450 ROD 6.768 STEP HEAD 4.4CC 2V KB HYPER PISTON SET

$82.44

SKU: U00B KB280.020

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Description

The United Engine & Machine Co KB280.020 is a piston set designed for high-compression applications. Constructed from Cast 390 Hypereutectic Alloy, these pistons feature a dome style and coated skirts for enhanced durability.

These pistons are designated as OE replacements for engines manufactured between 1968 and 1971. They offer multiple compression ratio options, including 72-12.3, 80-11.3, 84-10.8, and 88-10.4, with a high-compression flat-top design. The bore size is 4.362 inches.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB280.020

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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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