I don't know if you actually read the thread, but you would be damn hard pressed to find a small block ford running every bit as fast as a twin turbo 510 CI viper engine.
As far as adding a "ton" of weight? Dude, its a TWIN TURBO 510 CUBIC INCH V10 ENGINE!
Thread and build are awesome!
Adam
No, to be honest I really didn't read the thread, because…meh, whatever, but in either case why not answer with a stroked and poked 351W with Twin Turbo?
Still half the work, a lot less weight and much more practical.
...and for you hard heads that think that the Viper engine is light just because the block is made of aluminum, you need to give your heads a shake. Yes, an aluminum block is lighter than iron, but there's a whoooole lot of it. An early 4.6L DOHC engine is light too, but fully dressed it weighs damn near 600lbs. Hell, the rotating assembly of the V10 alone probably weights nearly half the entire weight of a 351W...and you've still got the block, heads and valve train (not to mention accesories) to contend with.
Like I said...cool on paper, but for all practicality purposes...
It goes right up there with the LSX swap for dumb engine swaps for me.