Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT SBC 383

$608.04

SKU: U00B KB172KTM.030

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

Professional / shop required

Description

The United Engine & Machine Co. KB172KTM.030 piston is a hypereutectic, flat-top piston with a 7cc volume and a 4.155-inch bore, designed for Small Block Chevy 377 and 400 cubic inch engines.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB172KTM.030

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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