ok i have a 460 big block that was swapped from a 71 lincoln cont. and i want to replace the seals from valve covers to head gaskets and what not, but its hard finding a gasket set for a 460 from 71 so i was wondering did ford ever make any changes to the 460 during its life time? is gasket sense.. thinking of using a gasket set for a 460 normally sold to owners for a 1988 f250. thanks everyone