What is the stock tire size for 1965 Chevrolet Impala?

The stock tire size for a 1965 Chevrolet Impala varied depending on the model and options. There wasn't one single size. Common sizes included:

* 7.75 x 14: This was a very common size.

* 8.25 x 14: Also frequently used.

To know the exact original tire size for a *specific* 1965 Impala, you'd need to check the original owner's manual (if available) or look at the information on the vehicle's data plate (often located on the driver's side doorjamb).