Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

1 SET KB194.STD/1 SET 4125BD8.005

$673.24

SKU: U00B KB194KTD.STD

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Description

Keith Black Hypereutectic pistons are designed for high-performance marine, drag race, circle track, street, or towing applications. Made from a low expansion 390 alloy with 16 percent silicon, they allow for tighter piston-to-wall running clearances. This set, MPN KB194-STD, fits Chevy Small Block 377 engines with a 4.125" bore, featuring a flat top 7cc design and 2 valve reliefs. Wrist pins and spiral locks are included.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB194KTD.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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