you make the widen the cylinder walls for the pistons bigger than the engine was originally meant for.
everytime you stay out late,
everytime you sleep in,
everytime you miss a meal,
everytime you miss a workout,
you make it that much easier for me to beat you,
...I will beat you, because in my mind I already have....
it means to increase the size of the cylinder so you get more cubic inches of displacement. commonly if you have a motor rebuilt they will bore it .030 over stock but in high performance applications you can go bigger. the boring process also removes any scratches/ scars/ defects from the cylinder wall so the rings will form a better seal and loss of compression or oil consumption wont be a problem. rep me