Hello there.
To answer this question, we'll use the information given by the question: the size of the cylinder given by the bore measure, the height given by the stroke size and the volume of the engine will be found multiplying that measure by the number of cylinders;
First, we'll find the size of a cylinder:
Given the bore size and the height, we can calculate the volume of just one cylinder, using the formula: pi * r^2 * h or pi * (d/2)^2 * h.
In this case, knowing that the bore size is equal to the diameter, we'll use the second formula:
pi * (4.25/2)^2 * 3.76
Using the approximation for pi, we get: 53,313275 in³
Now, multiplying by the number of cylinders, we get: 426,5062 in³.
Rounding up to the nearest hundreth, we may get 426.50 in³.