Try lkq corp also. they will have a full block but it might be on the same price as normal places and they can get them from around the country. theres plenty of aluminium 5.3 blocks now that they have them in the new trucks just need to do what "ForcedTQ" said about all the other parts.

 

Why is everyone stuck on the L33 being a gen IV..... You guys are thinking the LY5. That is a gen IV

 

why keep the auction site a secret? whats the name of the site?

 

Come on..... E*** You know it, think about it for a second.