If any one is going to build a 351 Cleveland powered GT40 or Cobra or what ever. There is a "new" block being cast. The first prototype block was cast yesterday in aluminum. They will be in aluminum and cast iron. Here is the link to the site. The second one is pictures.
Ford 335 "Cleveland" Series Engine Forum
Ford 335 "Cleveland" Series Engine Forum
Ford 335 "Cleveland" Series Engine Forum
Ford 335 "Cleveland" Series Engine Forum