318 with 360 heads and compcam build help

What will it take to run the 9" Ford? Is it custom built for an A-Body Mopar? Custom drive shaft? 273 sounds funky is 273 cast in the outside of the block?
Got no clue but I got a welder and commitment. And the driveshaft will have to be cut either way because the customs driveshaft was longer I think.