Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEVROLET 305 ROD 5.700 FLAT TOP +5CC 2V KB HYPER PISTON SET

$73.40

SKU: U00B KB143.020

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Description

The United Engine & Machine Co KB143.020 is a set of 8 hypereutectic pistons. These pistons feature a flat top design with two valve reliefs and a bore size of 3.756 inches. They are designed for stock or stroked engines with a 3.750-inch stroke and a 5.700-inch rod length.

The pistons are constructed from hypereutectic aluminum and have a compression height of 1.561 inches. The piston head volume is +5.00cc, and they utilize a press-fit or floating wrist pin style with an included wrist pin and retainers. The ring groove thickness is specified as 5/64 in. x 5/64 in. x 3/16 in.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB143.020

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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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