Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT BBC 540

$665.56

SKU: U00B KB389KTD.134

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The KB389KTD.134 is a Keith Black Hypereutectic Piston Kit designed for high-performance Chevrolet 540 cubic inch Big Block Chevy engines. It features a low-expansion 390 alloy, fully machined head and valve reliefs, and an accumulator groove for improved compression ring seal. Wrist pins and spiral locks are included.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB389KTD.134

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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