Exterior Components› Body Panels and Components

United Engine & Machine Co

FORD 347 ROD 5.400 FLAT TOP 0CC NO VALVE KB HYPER PISTON SET

$72.94

SKU: U00B KB349.020

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The KB Performance Pistons KB349.020 are hypereutectic pistons designed for performance applications. Made from 390 aluminum alloy and heat-treated to T6 standards, these pistons offer 30 percent greater strength than untreated hypereutectics. They feature 100 percent CNC-machined crowns, high upper compression-ring location, gas-accumulator grooves, drilled oil returns, and spiral-lock retainer grooves.

These pistons have a lightweight, rigid-rib skirt design for stability in the bore, providing a tighter fit than forged types. They offer improved oil control, reduced blow-by, increased ring life, and eliminate cold start-up knocking. This set is sold as a set of 8 and includes a spacer ring, centered pin, and wrist pins.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB349.020

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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