Umm OK WHy ?
how original ?
you will need a 426 Wedge block [rare]
A set of the ultra rare max wedge heads , $2500 or more
if you are ok with aftermarket you have a few choices of Alum heads with max wedge port size .
If you are OK with Alum heads why not use an Indy or World Max block which will take 2200 hp or a basic 440 RB block