Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT CHRY 440

$772.28

SKU: U00B KB236KTM.060

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Keith Black Hypereutectic pistons are ideal for high performance marine, drag race, circle track, street, or towing applications, featuring a low expansion 390 alloy for tight piston to wall clearance and robust construction including fully machined head and valve reliefs, CNC machined pin bores, and diamond finished skirts.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB236KTM.060

Videos

440 MOPAR Big Block Engine Building - Setting Crank End Play & File To Fit Piston Rings

440 MOPAR Big Block Engine Building - Setting Crank End Play & File To Fit Piston Rings
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Big Block Mopar 400 Build Series: Installing Pistons and Rods
440 MOPAR Big Block Engine Building Block Identification & Crankshaft Installation Part 1

440 MOPAR Big Block Engine Building Block Identification & Crankshaft Installation Part 1
440 Chrysler Mopar Engine Building Part 3 - Piston Ring Gapping & Installation

440 Chrysler Mopar Engine Building Part 3 - Piston Ring Gapping & Installation
440 Mopar Engine Pistons and Rods Install: Alex's '70 Duster Build Ep. 17

440 Mopar Engine Pistons and Rods Install: Alex's '70 Duster Build Ep. 17
How To Assemble A Mopar 440 Big Block! Detailed Step-By-Step Guide

How To Assemble A Mopar 440 Big Block! Detailed Step-By-Step Guide

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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