Engines and Components› Pistons and Piston Rings
United Engine & Machine Co
3953 FORD 239/3.9L (V8) FLATHEAD SILVOLITE CAST PISTON SET
SKU: U00B 1058.040
Advanced — 4+ hours
Description
MIA's Description
The piston set has a bore of 3.1875 inches plus the .040 inch oversize, and a compression distance of 1.763 inches, including the dome. Please note that piston rings are not included with this set.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B 1058.040 |
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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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