Slack in new timing chain

Even if the block was line bored and or honed, if done correctly, it will hardly move the crank at ALL. A good machinist will remove more off the main caps than the block. When we did them, we always barely skinned the main saddles in the block...and I mean BARELY. You simple remove material from the main caps, reinstall them and line hone it more toward the caps. At least that's how it's supposed to be done.