Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT BBF 427

$659.24

SKU: U00B KB163KTM.020

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
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Description

Keith Black Hypereutectic pistons for high-performance marine, drag race, circle track, street, or towing applications. Features low expansion 390 alloy with 16 percent silicon for tighter piston to wall clearance. Includes fully machined head and valve reliefs, triple spiral lock rings, CNC machined pin bores, accumulator groove, machined oil returns, diamond finished skirts, mini grooves to reduce scuffing and overheating. Wrist pins and spiral locks are included. Rings (5/64 x 5/64 x 3/16) are not included.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB163KTM.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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