Shipping Weight on a 5.3L?
Iron block or Alum block (5.3 is available both ways).
Will this be crated?
For info, my 6.0L LQ4 in a crate was 695lbs but that didnt' include any accessories. Crate was pretty heavy, definitely over 100lbs probably closer to 150lbs (it was 3 pallets (one of which was super duty) and some 2x3's).
Also, if you're shipping it truck freight (which I'm sure you are), make absolutely sure you get the correct freight class. There is a class for used automobile engines, should be freight class 70. Higher freight classes (up to 500) are more expensive, lower (down to 50) is cheaper. Lower classes also are lower liability classes, which means if you ship an engine by class 50 and it gets broke, good luck getting any damage money from the trucking company.
Just some observances from doing it before.
'JustDreamin'


