Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

1 SET KB164.STD/1 SET 4000BD8.005

$587.76

SKU: U00B KB164KTD.STD

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Keith Black Hypereutectic pistons are designed for high-performance Chevy Small Block 383 engines with a 4.000" bore. They feature a 19cc dish, 2 valve reliefs, and are made from a low expansion 390 alloy with 16 percent silicon. The set includes wrist pins and spiral locks, and is compatible with 1/16" x 1/16" x 3/16" piston rings (sold separately).

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB164KTD.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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