The legendary 460 V8 was one of the long-lasting Ford engines that debuted in 1968 and sold well into the ’80s. It started as the top-of-the-line engine for Lincoln but later was an option on Mercury and Ford models. In the late ’60s, this powerful Ford unit delivered 365 HP and provided the Lincoln Mark III with convincing performance for a luxury car (via Moto Verso).
However, it had to avoid the destiny of all other US-made engines in the ’70s and couldn’t do so. It lost its power with smaller intake, low-compression heads, catalytic converters, and so on. By the late ’70s, the 460 had only 197 HP. After that, it was offered as an option on Ford Econoline vans. Ford never admitted it, but it wasn’t as powerful as it needed to be to put in a passenger car.