if youre future plans are too go forced induction ,s/c etc go with the lq4 lower compression if not then the lq9 is a badass motor higher compression .you should be able to tell by price if youre getting fromsalvage yard.lq4 comes in hd pickups,vans,example .lq0 comes in escalade ,and ss pickups.i personally have lq4 for f/in .hope it helps .sorry i dont have numbers,i did the same swapso any thing i can help with let me know.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .