Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEVROLET 400 ROD 5.700 DCUP +30CC 2V KB HYPER PISTON SET

$67.77

SKU: U00B KB126.STD

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

CHEVROLET 400 ROD 5.700 DCUP +30CC 2V KB HYPER PISTON SET

MIA's Description

The United Engine & Machine Co KB126.STD is a set of eight hypereutectic aluminum pistons designed for performance applications. These pistons feature a dish style with a D-shaped cup, a 4.125-inch bore, and 5/64 in., 5/64 in., 3/16 in. ring grooves.

The KB Performance hypereutectic pistons are constructed from 390 aluminum alloy and heat-treated to T6 standards, making them 30 percent stronger than untreated hypereutectics. They are 100 percent CNC-machined and include features such as high upper compression-ring location, gas-accumulator grooves, drilled oil returns, and spiral-lock retainer grooves for improved performance, oil control, and ring life.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB126.STD

Buy with Confidence

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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