Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEY 305 ROD 5.700 FLAT TOP +5.5CC 4V KB HYPER PISTON SET

$70.43

SKU: U00B KB229.030

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Description

The United Engine & Machine Co KB229.030 is a set of pistons designed for Chevy small block Gen I engines. These hypereutectic aluminum pistons feature a flat top with four valve reliefs and a bore size of 3.766 inches.

Each piston has a compression height of 1.561 inches and a piston head volume of +5.50cc. The wrist pin style is press-fit or floating, and they come with retainers and pins included. The piston ring thickness is 5/64 in. x 5/64 in. x 3/16 in.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB229.030

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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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