Piston to deck clearance 360

I don't want the top ring sticking out if I use/buy a stroker crank..if you or someone can tell me the the ridge is is roughly 1/4" wide .25" ... And my 3.79" stroke - 3.58" = .21" Puts me In the position to go ahead and buy my crank on A body Only professional advise and word...since I am traveling now and away from my work space. Sincerely jj