Exterior Components› Body Panels and Components

United Engine & Machine Co

PONTIAC 455 ROD 6.630 STEP DISH +30.5CC 2V KB HYPER PISTON SET

$75.62

SKU: U00B KB371.060

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Description

The United Engine & Machine Co KB371.060 is a set of pistons designed for Pontiac V8 engines. These pistons feature a step head design with two valve reliefs and are made from hypereutectic aluminum.

With a bore size of 4.210 inches and a stock engine stroke type, these pistons have a compression height of 1.490 inches. The piston head volume is +30.50cc, and they come with a press-fit or floating wrist pin style. The included wrist pins and retainers are also part of this set.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB371.060

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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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