Exterior Components› Body Panels and Components
United Engine & Machine Co
SNGL HYP/CTD PISTON 4.3L GM
SKU: U00B S3463HC.030
Advanced — 4+ hours
Description
These pistons feature a dish style with two valve reliefs and are constructed from a hypereutectic aluminum alloy, known for its strength, scuff resistance, and seizure resistance. They have a bore size of 4.030 inches and a compression height of 1.540 inches. The piston rings are not included, but a wrist pin is included with a press-fit style and a 0.927-inch diameter.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B S3463HC.030 |
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.
View Full Return Policy