426 stroker kit

Also with it being a 6.1 and a factory forged crank, You can get drop in rod and pistons that require no balancing. Then add a power adder of your choice, the rod/pistons are rated up to 700 ( Wheel) horsepower . More than you will ever get with a stroker N/A on pump gas.

https://www.modernmuscleperformance.com/product/61l-drop-in-forged-rod-and-pistons-power-package