Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT BBF 429

$711.08

SKU: U00B KB368KTM.030

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Overview

The United Engine & Machine Co KB368KTM.030 piston and ring kit is designed for Ford 429 and 460 engine families. These pistons are constructed from a Cast 390 Hypereutectic Alloy and feature a flat top with a +2.5cc crown volume, suitable for various compression ratios including 11.5:1, 11.0:1, 9.9:1, and 8.1:1. The kit is engineered for a 4.36-inch bore and includes rings.

This kit fits Ford Big Block engines from 1958 to 1998. The pistons have a 1.900-inch compression height and are .030 inches oversized. They are designed with a centered pin configuration and are compatible with press or floating pin types.
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KB HYP PISTON KIT BBF 429

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB368KTM.030
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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