Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT OLDS 455

$638.76

SKU: U00B KB277KTM.020

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

Moderate — 2–4 hours

Description

The Keith Black Hypereutectic Piston Kit KB277KTM.020 is a high-performance piston kit for Oldsmobile 455 V8 engines from 1968-1976. These pistons are made from a low expansion 390 alloy with 16 percent silicon for tighter piston-to-wall clearance and feature a +15cc dish head, fully machined head and valve reliefs, Triple Spiral Lock Rings, and CNC machined pin bores. Wrist pins and spiral locks are included. Bore size is 4.126 inches.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB277KTM.020

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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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