Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEVROLET 383 ROD 6.000 DCUP +19CC 2V KB HYPER PISTON SET

$68.98

SKU: U00B KB164.040

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Description

The United Engine & Machine Co KB164.040 is a set of 8 hypereutectic pistons designed for high-performance builds. These pistons are constructed from a low-expansion 390 alloy with 16% silicon, allowing for tighter piston-to-wall running clearance.

Features include fully machined head and valve reliefs, CNC machined pin bores for accuracy, and accumulator grooves to aid compression ring seal. They also have diamond-finished skirts and mini grooves to reduce scuffing and overheating. Wrist pins and spiral lock rings are included.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB164.040

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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