Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

7884 HARLEYDAVIDSON SHOVELHEAD 80CI/1340L OS STD PISTON SET

$99.43

SKU: U00B KB297.STD

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INSTALL DIFFICULTY
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Professional / shop required

Description

7884 HARLEYDAVIDSON SHOVELHEAD 80CI/1340L OS STD PISTON SET

MIA's Description

The United Engine & Machine Co KB297.STD is a piston kit designed for street riding style. It is constructed from a hypereutectic T5 aluminum alloy, offering a lightweight yet strong piston. The kit features a standard bore size of 3.498 inches and a stroke of 4.250 inches, with a compression ratio of 8.3:1. The pistons are manufactured to tight tolerances, with a weight tolerance of ±1 gram and a piston-to-piston tolerance of ±0.0005".

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB297.STD

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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