I'm looking for advice on this. I was recently considering getting rid of my truck to get something that doesn't burn oil and shut off cylinders like the 5.3 and something with the power of the 6.2. I'm looking to get a programmer soon to disable the AFM to solve that issue, but what else could I do to build this motor? I have searched through multiple forums to see if anyone has built a 5.3 to get a good amount of power out of it with no avail. To the best of my knowledge the 5.3 is built on the LS platform, but can LS parts be put directly on this motor? Any advice is appreciated and if this is a dumb question please be easy on me.