Stroking theory question

Just stuffing a huge crank in is not the answer

There's been more than books, hell there's been whole libraries written on things like stroke vs bore, rod length, piston speed, and rod to stroke ratio, along with a few other things

People like Yunick and Grumpy and uncountable numbers of Ford, GM, Mopar, and you name it, probably every serious engine builder ever born have spent lifetimes on this work.