How do u convert from small bolt pattern to big bolt lug pattern wheel

here is how on the front.. https://www.bigblockdart.com/techpages/dbconversion.shtml

there is another way and you can keep drum brakes up front but to me thats just a waste of time...

for the rear if you are keeping the 7 1/4 then just find a newer big bolt 7 1/4 and bolt it in.. of find a abody 8 1/4 and bolt it in. gonna need different shock plates and ubolts though. or find a abody 8 3/4 and but b,c,e ebody drums on it with a set of big bolt axles. gonna need shock plates and ubolts too.