Exterior Components Body Panels and Components

United Engine & Machine Co

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

$65.40

SKU: U00B KB143.STD

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Description

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

MIA's Description

The Keith Black KB143-STD is a set of eight pistons designed for SB Chevy 305 engines. These hypereutectic pistons are constructed from a low-expansion 390 alloy with 16% silicon, allowing for tighter piston-to-wall running clearance.

Key features include fully machined head and valve reliefs, CNC-machined pin bores for accuracy, and an accumulator groove to aid the compression ring seal. They also have diamond-finished skirts and mini grooves to reduce scuffing. Wrist pins and spiral locks are included, but piston rings are sold separately.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB143.STD

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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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