as the others said, this is an easy swap. you dont even need headers as the stock manifolds will fit. hood clearance can be a problem with this swap, but stick with nothing taller than a performer rpm intake, and use a drop over air cleaner and you should clear the hood. you can use the 289 water pump if you want to keep the stock hoses and rad, otherwise upgrade to a 3 core rad with the lower outlet moved over to the drivers side. over all this swap is no big deal, but the details need attending.