Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

1 SET KB100.040/1 SET 4000BM8.040

$625.96

SKU: U00B KB100KTM.040

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Description

The KB Hyper Performance Piston Kit, MPN KB100KTM.040, is a cast 390 hypereutectic alloy piston kit designed for Chevrolet SB V8 Gen I 383 engines. It features a centered pin and comes with rings, offering a bore size of 4 inches and a .040 inch oversize. This kit provides various compression ratios and is suitable for performance applications.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB100KTM.040

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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