Is the Cadillac Vortec HO 6000 LQ9 the same motor in the SS Silverado? And if so will regular 6.0 mods work with the LQ9?
Thanks

 

yes, the same, yes all the mods will work. only thing to think about is if you go with boost the lq9 is high compresion and wont take as much boost.

 

The 5.3 has 9.5:1 compression and the 6.0 has 9.4:1 and the LQ9 has 10:1 so how much boost do you think it will take? I'd like to put a Radix on it and maybe +1-3 psi.
Thanks

 

The LQ 9 with the radix makes about 6-7 psi.

 

6-7 psi no, no, no. MORE BOOST!!!!!!!

 

Well, thats what it COMES with! There are ways to make it better!

 

That's what I want to hear! Project R when I get my RADIX I'm going to YOU!

 

Any time! Let me know when you are ready!

 

you will be able to turn up the radix prety high but i would be suprized if you got over 8psi on an lq9 without running race gas. i think you would make more power with non race gas if you got the compresion down some.

 

True, 8 psi on any supercharger will be pushing it. But 8 psi on the LQ9 will be awsome