I'll check on the numbers and get back to you.
Umm... As far as the boat anchor thing? This guy has never heard of the 283 Power Pack, or know a whole lot about small blocks.
What you and I have are 283 blocks with a 327 crank. The main difference between the 350 blocks and the 283 blocks is 1/8" of bore diameter.
Just 1/8".
Here's another formula, for your amusement:
Cubic Inch Displacement (CID) = Bore x Bore x .7854 x crank stroke x number of cylinders.
Bore squared, times .7854 gives you the area of the circle.
Type to you again soon!
Dan