OK I am understanding now. That number is a Ford casting number from what I have found it comes from a 94 Mustang or a 88 to 90 something T-bird. With that said, look for a letter number combination on the block, intake or on a head. For a 90s Ford engine it should start with the letter "F" the next is a number which is the year so for a 93 engine the letter number stamping should be "F3". That will tell you more about the engine and will give you a better idea of what to do to make it fit.
1968 Coupe <53000 miles on her 289 came off the line Jan 21st 1968. I bought it in 1983
2013 Shelby GT500 Born 12/06/2012 number 439 of 530 in DIB and 1 of 9 with Red Stripes over the top and on the seats