Questions about a 2006 5.7

Getting a pre- Eagle and bolting on eagle or 6.1 heads is gonna get you 400hp. I have a 2014 5.7 block that meeds a new cam. No heads or accessories crank and pistons are good. It had a bad lifter and wore down the cam. I replaced it with a rebuilt long block and am planing to put the heads on my 2004 5.7. The motor is in my garage come and get it.