VA4CQD (sounds like an amature radio call sign) has it nailed. Lot better info that Hot Rod offered a guy about 40 years ago who wanted to put an FE 390 into a Ford Falcon. They suggested he remove the hood and existing engine. Then raise the 390 about 10 feet over the engine compartment, then drop it!
I'm sure that would of provided a custom fit of sorts.
Thats just too funny !!!!!