LQ9 vs LQ4

[pl4yboy]

thread revived, i'm building an lq4 at the moment but i'm going out on the preverbial limb. Mine will go like this:

03' 2500hd LQ4 stock shortblock
04' 5.3l 706 heads with stage II port and polish
trickflow dual spring kit with titanium retainers and seats
comp cams 220/222 .581''/.581'' 114LSA camshaft
GMPP open plenum manifold
AeroMotive fuel rails and regulator
8.1L injectors
88-95c/k radiator with oil cooler and transmission cooler (double row core)
OBX Lts with catless y-pipe

mine will be n/a and i still have no idea what kind of power it will make

but the lq4 is very versatile and respondes extremely well to b oost, especially with a set of ls6 heads, you have to be extremely careful though because the ls6 heads will bump the compression way up and boosting could be tricky, but with the better flowing heads, you can gain alot of HP with the same boost

You can gain a lot more if you went with a bigger cam in that 6.0.

[molitor]

You can gain a lot more if you went with a bigger cam in that 6.0.

always comes back to the cam, jeez, i gotta drive this thing to work each day and with the 5.3l heads, if i get too much cam and too much power, i'll end up with a truck that has the worst kind of street manners. i'm going for a scolded monkey, not the bat out of hell.