I have 2002 RCSB Z71 with 5.3 it has several mods on it already such as: Powerdyne Supercharger with 9 lbs boost, 42lb injectors, 255LPH Fuel Pump, Corvette Servo and Shift Kit, Flowmaster Exhaust, Custom Dyno Tune, and I am fixing to install a Z06 Cam and Intake with Pacesetter Longtubes, and up the boost to 12 lbs. My question is I have a set of Z06 Heads that come with the cam and intake I bought should I install them, or leave stock heads, or install stock 6.0 Heads???. I have done some reading on the subject and it says for a blower motor not to use Z06 heads for it will raise compression ratio where was stcok 6.0 will lower it? So what should I do???

Also For which ever set of heads that I use should change springs, push rods, etc for that cam, or what? Any information that you can give would be most helpful.

 

if you put Z06 heads on a 5.3 it will lower compresion due to the fact that 5.3 has a 61cc chamber compared to a 64cc with the z06. stock 6.0 heads will further reduce compression because i think it has 72cc.

 

So the Z06 heads will be fine? Should I change springs or anything?