408 or gen 3 hemi

Lots of suggestions here and I'm not going to read all of them, at least not yet. For those leaning towards the HEMI watch out for those valve seats in the heads, THEY FALL OUT from heat. At least the LA stroker doesn't have to worry about that unless you are running alloy heads. Beyond that, the same tech that is stock on a new HEMI can be implemented on any earlier design and then it comes down to the materials used in the later models, all of it, right down to the serpentine belt drive. Well, reverse flow cooling is a bit tougher to deal with but not a big issue. I don't care for forged power rods and fractured caps with cap bolts. Same goes for those building 7.3 l Ford diesels and later model Cummins', the older parts are better. The rods in any LA are far better than what comes in a HEMI in my opinion. I had a whole bunch of other stuff I want to say but it come out too much. I deleted it.
Valve seat issues where with early head. Most people adding power will rework heads anyhow, especially to get the all the power out of that block. I have an 04 5.7. And have had no issue and it gets drivin and pretty hard too.