I wish i had the money for a 3.4 swap. But its just going to be a good rebuild and bulletproofing on the 3.0  .  The 3.0 gets a bad wrap but its a good motor when its taken care of correctly.  But since I'm building it, I'm going all out on it.  ARP head studs, MLS head gasket, headers, make sure this thing is stout.  Once I do that ill never have to get back into this motor, and a 3.4 is an extra 40 HP (150 BHP in the 3VZ/ 190 BHP in the 5VZ).  Not worth the thousands of dollars to do a 3.4 swap.