'04 C5 LS1 longblock; good for swap?

[haveTBIwantLS2]

Hey guys-

So I have the '98 2 door Tahoe, about to pull the trigger on the 'ol LS swap, couple of questions.

The all-aluminum LS1 5.7... seems like it would be more torquey than a 5.3. Camshaft is damn near identical, if not identical. Smart choice for the Tahoe, over the 5.3? Durability?
Dude has one on CL for decently cheap, that's why I ask. I would run the truck intake,accessories and harness, no big deal. Running EFILive on an 0411 for the Tahoe.

Cutting 100lbs of weight is attractive, but then there are all those F-Body guys running iron LQ4 blocks, etc, for strength (probably only on FI cars tho).

So... 5.7 LS1 over the 5.3 LM7 into the Tahoe?

Thanks guys