It already had the built 351 and T5 when I got a hold of it. I'm a body man. Since you're replacing a toploader and the trans has more than one shifter mount position, I think if you do a normal amount of research you'll find its easier than many other swaps. Headers with a stick and stock power steering though, in a 70? MMM- get ready to bleed. If your combo doesn't need big primary tubes maybe. I pretty much had to precision-re-engineer the Z-bar, that was a nightmare.