Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

1 SET KB110.040/1 SET 4000BM8.040

$661.96

SKU: U00B KB110KTM.040

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INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

The KB110KTM.040 is a KB Hyper Performance Piston Kit designed for Ford SB V8 Windsor 351 (5.8L) engines with a 4.040-inch bore size. These pistons are suitable for pre-1971 blocks and offer various compression ratios depending on head volume. They are constructed from durable 390 Hypereutectic Alloy for enhanced performance.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB110KTM.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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