[Brent Mills]

I suppose it really depends on who's doing the building of the 428. FE's aren't cheap to build (believe me, I've had plenty of experiences paying the piper due to bad luck or bad builder or both). If the core is good, a good builder can get you reliable power out of it. The aluminum thing is not necessary and does cost more money. If you needed a new block and wanted a 427 S/O, well, then you're talking about equivelent money pretty much.