Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEVROLET 489 ROD 6.385 FLAT TOP +3CC 1V KB HYPER PISTON SET

$72.17

SKU: U00B KB284.040

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Description

CHEVROLET 489 ROD 6.385 FLAT TOP +3CC 1V KB HYPER PISTON SET

MIA's Description

The United Engine & Machine Co KB284.040 is a set of pistons designed for Chevy big block Mark IV engines. These pistons feature a flat top with a single valve relief and are constructed from hypereutectic aluminum. The set includes 8 pistons with a bore size of 4.290 inches and a stroke of 4.250 inches.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB284.040

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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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