Oil pan fitment 318

almost done with my 318 build..stupid of me did'nt realize that i had a truck pan..so all the effort of cleaning and painting was wasted...anyhow looking at mp performance pan and just want to make sure its going to fit in my 69 dart..summit number is p5249062..currently there is a 273 with the sump in the middle ,so im not sure if this is what i need..thanks fabo