for that price its definately worth it. im currently doin a 5.4 4v swap and ive been told the 2v is alot easier, not that the 4v swap is that hard but either way the 5.4 gives you a better base to start from and most mods work with both the 4.6 and 5.4. theres no replacement for displacement

 

Most mods... until you start talking about supercharges, exhaust, intakes. Just remember, once you step into the 5.4 world, nothing was designed (other than the HPS hairball'r intake manifold) for that engine to be in a mustang.