There's a term that has become popular amongst the automotive set in recent years: "Restomod". For example, if you take a vintage car in poor condition, restore the body to pristine shape and put a modern engine, transmission and suspension in it, that's considered restomodding.
I've done that with various equipment over the years; for example, I'm currently working on putting a recent make can motor into an old Bowser Birney...
Mitch