Unfortunately, I don't have access to the exact bore and stroke for a Ford 300. You'll need to look that up in a repair manual or online specifications for your specific engine. Once you have the original bore and stroke:
1. Calculate the new bore: Add 0.060" (twice the overbore amount, since the bore diameter increases on both sides) to the original bore.
2. Calculate the new displacement: Use the formula for the volume of a cylinder (πr²h) multiplied by the number of cylinders (6). 'r' is the radius (half the bore), and 'h' is the stroke. Do this calculation with the *new* bore you calculated in step 1.
Then you'll have the cubic inch displacement of your bored-out Ford 300.
