What would be a decent sized cam to run on my 5.3??? I have a tr224 right now and would like to go up some but don't know how much I can without running into PTV clearance problems.

The heads (PRC stage 2.5) have been milled .045 down to 57cc by TX speed

If something of .6xx lift will clear, will these heads even flow good enough at .600+ to justify using it?

 

you can definitely go bigger than a 224/224 cam. but ive seen some guys put down good results with 5.3 heads and a 224 cam. i would stick with that cam and slap the heads on and see how you like it. the 224/224 cam is obviously one of the best DD cams.

 

I'm runnin the cam in my sig with no issues

 

They are already on and put down 390/366 w/ the 224... this is in a truck, on a 5.3 if you didn't know.

Your heads aren't milled are they??

 

With the heads milled as far as they are, you're going to be cutting it close even with the 224R! You definitely won't get away with anything in the 230's duration range!

 

what about a cam like 228/228 .600/.600 on 114

 

that sucks!!