My first car, was also my parents both first ever new car, a 72 Gran Torino. They ordered it with bucket seats which were part of the option that came with console and full length vinyl inserts in the rug. The only other options they got were the 351C-2V, and the wide side trim. I saved the front interior parts by swapping them into my first 73 Ranchero, with a used 72 Sport front end. Over a year ago I bought another 73 Ranchero GT to help build a nicer one. So 351C-4V is my favorite engine, now i have the one driveable Q-code version, and the parts of my old 351C-2V to build(I built a 4V for that first car). The 400 is a poor unloved engine, and I even have parts to build one of those. I started a 400 build for a 69 Mustang and ended it when the car ended up to be too far gone, parts missing and rust. But the engine I had machine work done until they moved and lost the crank. But the engine block I had converted to four bolt mains, and screw in freeze plugs. No other 400 exists with those I'm sure.