Engines and Components› Pistons and Piston Rings
United Engine & Machine Co
HYPER PISTON 5.7L GM
SKU: U00B 1479H.040
Advanced — 4+ hours
Description
These pistons feature a flat top with four valve reliefs and have a 4.040 inch bore. They utilize an aluminum alloy high in silicon for increased strength, scuff resistance, and seizure resistance. The pistons are engineered with reinforced top lands and a proprietary diamond-finished skirt process for improved groove wear and resistance to cracking.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B 1479H.040 |
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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