Motorcraft KM=308 .
This setup is using Jays water pump adapters and a 21" cross flow with 1.250 phenolic spacers under it from the stock lower mounts. Its important to note that I did indeed combine the short nipple on the pump with a long nipple to get the length I have so this deal is somewhat a one off . I found personally that using either of the nipples by themselves with these adapters and Jays timing cover would give you a tight fit between the cover and the nipple (Using the size that I chose which is the same as the stock CJ pump)
By the way. This radiator is the proform 69590-21 . The entire unit with fan and shroud is only 4" thick. This is a nice option for a mustang if it performs well. I havnt run this thing yet so I cannot vouch for how well it does but I dont see any reason that it wouldnt do what its supposed to at this point. I will attach a couple of pics
