Lincoln Mark VII's came with 5.0 HO's also. It's a little easier to find those for donor cars, since they don't have a large demand like mustangs bodies with 5.0's. They only come with AOD 4 speed. 5 speeds are easy enough to come by if you want. Make sure you get a newer 5.0, as the older ones were 5.0 HO's, but came with speed density instead of MAF later on(1988 and up?). Speed Density doesn't account for upgrades such as cam, injectors, heads, etc. Just do a little research before you find what you need. As for identification, there will be a plaque or emblem on the top of the engine that says "5.0 HO". Can't miss it, regular 5.0 v8 will not have this emblem.