426 stroker dropped in scamp

RedB. said
426 ohyeah , how did you get 426 cu in out of your engine ? bore x stroke , thanks Red B.

4.120 bore (.080 over) 4.00 stroke 426.61420032 to be precise. Bore x bore x stroke x .7854 x # of cylinders = cubic inches. That's the math on any block. Closer to 427 actually. Block sleeved of course-