Engines and Components› Pistons and Piston Rings
United Engine & Machine Co
5971 CHRYSLER/DODGE 383/6.3L MOPAR BIG BLOCK B (V8) FLAT TOP SILVOLITE CAST PISTON SET
SKU: U00B 1271.STD
Advanced — 4+ hours
Description
MIA's Description
Each piston has a 4.250 inch bore and a 3.375 inch stroke, with a 6.358 inch rod length. The ring grooves are 5/64 in., 5/64 in., and 3/16 in. This set is sold as a quantity of 8 and includes wrist pins, but not wrist pin retainers or piston rings.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B 1271.STD |
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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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