Exterior Components› Body Panels and Components
United Engine & Machine Co
SINGLE CAST PISTON 5.7L GM
SKU: U00B S1442.020
Advanced — 4+ hours
Description
MIA's Description
This piston has a -4.00 cc flat top crown volume, resulting in a 9:1 compression ratio. It is constructed from Cast 332 Alloy and has a pin diameter of 0.927 inches. The ring lands measure 5/64, 5/64, and 3/16 inches. The second ring material is press fit. The notes indicate it is a flat top with 2 valve reliefs, suitable for truck engines.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B S1442.020 |
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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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