is there any diffrence i tryed searching around but couldnt really get a stright answer

 

also if there is a diffrence then what are the diffrences and etc...

 

yes sir the lq4-lq9 head assembly is (similar) to a Z06 head in the flow characteristics. not exactly the same. they flow much better and have a bigger chamber if i rememeber correctly.

 

can you throw them on a 5.3 and much of any power gains???? and about how much do ya think

 

Your going to lose compression cause the chambers are bigger on the 6.0 head, you are better off with the 5.3 head. The 6.0 does flow alot better.

 

what about 6.0 heads and stuff a bunch of boost down her neck?

 

what about 6 lt heads and a whopping shot of Nitrous

 

5.3 truck heads are 1.98ish intake valve, 1.55 exhaust, 62cc chamber head.

5.7 2.0 intake valve, 1.55 exhaust. 67cc chamber.

6.0 same valves as 5.7heads, 72cc chambers.


6.0 heads are same design as ls6 heads.

LS6 heads are 64cc chambers.

5.3 and 5.7 heads are basicly the same in port shapes.


Aprox. #s anyway

 

You don't go low compression with nitrous. If anything you want higher compression. The opposite of boost.

 

Boost is good for those heads, nitrous isn't, unless you shave the pis out of them, but at that point you'll loose some other important factors and they will loose efeciency or effectiveness.