I just got my hands on a Radix. I also have a 5.7 out my buddies ol TA with a set of LS6 heads. I can jsut bolt it onto the 5.3 or I could drop in the LS1 what would you guys do? Has anyone else done it and what kind of gains did you guys see? My truck is lifted with 20" wheels and its not going to be for racing more for low end then anything, but since i am at it I might as well try to squeeze what I can right? But then again, is the gains I might get from the LS1 that much more dif then if I just left the 5.3 in. Let me hear what someo f you guys think please. I am late gotta get to work lol.

Damon