So my 4.8 finally retired and now I got a 5.3 on the stand I dont plan on doin anything crazy as i want to go bigger in the future. Im going to install all the basic bolt-ons and have it retuned. I was wondering what all of you thought about doing a 220/220 114 cam swap or just larger rockers since I have the 862 heads and dont really wanna tear in the motor. Also what about increasing the shims in the oil pump for more oil pressaure?

 

I would just do the 220 and not worry about larger rockers...I've seen a lot of good numbers come out of 5.3's with 220 cams. What one were you planning on doing? The TR220 is listed at .551 but is really .556 (a buddy bought one and that's what was ground on the end). Otherwise if you want more lift you can do the TSP 220, also an awesome cam as seen in M3SRT's vids.

 

I figured the TR220 im just about having to change out the pushrods or valvesprings. I plan to stay around the 350hp mark.