Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT CHRY 450

$614.84

SKU: U00B KB251KTM.060

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

Moderate — 2–4 hours

Description

The KB251KTM.060 Piston and Rings Kit is a hypereutectic piston kit with a 4.402" bore, 3.750" stroke, and 1.722" compression height, designed for Chrysler, Dodge, and Mopar 400 stroker engines using a 440 3.750 stroke crank. It features a 4.40 cc dome and is made from a cast 390 hypereutectic alloy.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB251KTM.060

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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