The original displacement of a 348 Chevy is 348 cubic inches. When the engine is bored .060 over, the diameter of the cylinders is increased by .060 inches. This increases the displacement of the engine.
To calculate the new displacement, we can use the following formula:
```
New Displacement = Original Displacement + (Bore Increase)^2 x Pi/4 x Stroke
```
In this case, the bore increase is .060 inches, and the stroke of a 348 Chevy is 3.25 inches. Plugging these values into the formula, we get:
```
New Displacement = 348 + (.060)^2 x Pi/4 x 3.25 = 354.4 cubic inches
```
Therefore, a 348 Chevy bored .060 over has a displacement of 354.4 cubic inches.
