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How much larger is a 440 cubic inch engine when it bored 0.30 over?

A 0.30 overbore increases the cylinder's diameter. To find the increase in total engine displacement, we need to understand that engine displacement is a volume calculation (cubic inches in this case). The increase isn't simply 0.30 cubic inches per cylinder.

To calculate the precise increase, we need more information, specifically the number of cylinders in the 440 cubic inch engine (most likely an 8-cylinder V8). With that, we can calculate the new displacement after the bore is increased.

Here's how to do the calculation (assuming an 8-cylinder engine):

1. Calculate the initial bore: We'll need to find the original bore (diameter) of the cylinder. There isn't a direct formula to get this from the total displacement (440 cubic inches) alone. We need engine specifications for the original bore and stroke. Let's assume, for illustrative purposes, the engine's specifications show that the original bore was approximately 4.32".

2. Calculate the new bore: Add the overbore amount to the original bore: 4.32" + 0.30" = 4.62"

3. Calculate the initial and new cylinder volume: The formula for the volume of a cylinder is π * r² * h, where r is the radius (half the bore) and h is the stroke (which stays the same). Assuming you know the original stroke value, calculate the volume of a single cylinder with both the original and the new bore.

4. Calculate the total displacement: Multiply the volume of one cylinder by the number of cylinders (8). This gives you the total engine displacement for both the original and the bored engine.

5. Find the difference: Subtract the original displacement (440 cubic inches) from the new displacement to find the increase in cubic inches.

Without the original stroke, we can't give a precise answer. You can find the original bore and stroke in the engine's specifications, readily available online for most engine models. Once you have that data, follow the steps above.