This is my first ford project, so be kind, I have a 54 mainline with a tired 239 Y, would like to put in another, rather then rebuild this one .My question is will all year Y blocks fit without modification, like motor mount location, bell housings, length and fan location I would like to just bolt it up to my 54 bell and 3 speed, that way all the linkage is sure to fit. or maybe in the future stick in a T5, I have had some trouble matching 235 6's in a 53 chevys in the past, not all engines were the same and some later truck engines are inches too long, and you need to move the radiator and some blocks dont have bosses for side mounts later water pumps are 3 inches lower. etc.. thanks in advance for you expertise. Bob.