okay...my 4v 4.6 has about 125k on her, i want to start building a 4v 5.4 from a bare block. I have been told that 2v and 4v blocks are the same(had i known this before i would have done something more with the two 2v engines that i already have),but i have already sold myself one building a donor 5.4 for my cobra. What is the BEST block to use(keep in mind that i plan on a 4v upstairs and forged lowers for future plans of twin turbo setup. anybody have any recommendations on what crank, rods and pistons to shop for? i want to try and hit between a 9.5:1 and 10:1 cr with "C" heads