I forgot to say, this is referred to as a "FT" engine instead of an "FE". Many of the parts from the "FT" are in demand by the FE people such as the crank. Other parts are not so in demand, I think for example the heads have small valves as you would expect for a truck motor. In any case this does not belong in the 534 forum. Move on down to the FE forum and repost the question and you will get much better information.