I know that Ford made a 302 mexican block that was pretty close to the boss block, or at least it had thicker webber and thicker 2 bolt mains. But there is a guy on e-bay selling 351 blocks as the "mexican" block. He is claiming that the webbing is stronger and thicker much like the boss 302 blocks were. I know Ford made some 351 blocks in mexico but I thought they were just the normal castings. He makes a reference about it being like a sportsman block. Anyone ever heard of a stronger mexican block for the 351w?
here is the link
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2471039222