Big Block 400 stroker .060 what CID ???

More specifically, it would be a 451.79261. Or 452 rounded off, as was said earlier.

You haven't pulled anybody's chain. We're right you're wrong. Pretty simple really.

Actually, the difference between the bore sizes is .022, not .020. But I don't understand the point you're trying to make. That still hasn't a thing to do with figuring displacement. You have two good formulas in this thread for that.

I don't know what else to say. You've been given two correct formulas. The .785 in the formula I posted is simply a "given" in a mathematical equation. I spelled it out through step by step math. If you cannot understand it, I'm sorry, but it is correct.

http://victorylibrary.com/mopar/rb-bs.htm the "chart "
"first rule of war is to confuse the enemy" .. Churchhill