Not if he goes with a nice vvt cam. But if he does go with a different cam that isn't vvt then all he has to do is swap to a ls7 sprocket (3bolt) or a ls3 sprocket (single bolt) and throw on the ls2 cover. Not pricy at all. I say try out a TSP VVT cam they make good low end and pull great up top. Vvt best of both worlds.

 

Sweet! Thanks for the advice. What rpm range do you think would be best for my application?

 

AWD I love cant wait till my trucks done !!!! good luck with your build

 

I would do 6200-6300. The stock lifters are fine as there the ls7 ones anyways but the only thing is your 6.2 has the heavy steel valves not the sodium filled valves that the true ls3s have. Also stock intake doesn't pull so much past 5800 anyways so I would say around there would be best. I'm sure some will disagree but from what I have seen seems like around that range is pretty good. High enough to pull through the gear (especially the short gear 6l80) but low enough to stay in the usable power band. But also remember your cam plays a big roll in it too.

 

Ok awesome thanks. What about rpm range for the converter? And what size cam? I'm wanting it to lope pretty good

 

For converter size that's all personal prefference but you really don't need a high stall like the 4 speeds I would say stay around a 3000 stall. Call up Chris at Circle D and tell him what you want to do with your truck and he can size you one accordingly. Also with the cam it's all up to you. Either call up TSP and ask about there vvt cams or call up Patrick G and have him spec you out a custom grind cam. Both will give you the results you want but Patricks cam will be more spec'ed for your truck and he can prob get it to "chop" for you pretty good.

 

Thanks for everyone's help, got the ARH 1 7/8" ceramic coated headers with catless midpipes and tuned with hp tuners. This thing screams now, I love it

 

wait till you get a converter and cam...then itll really wake up

 

In my opinion, don't ever buy a cam based on how it sounds unless you want to keep it modest sounding or near stock sounding. I think too many people buy a cam that sounds good and not one that actually benefits the most from the engine configuration. Get a custom grind cam to match your truck and current and/or any near future mods. I'd also ask your friend/tuner if he has any experience with the aftermarket VVT cams which are still somewhat new and from what I understand tricky to tune properly when all of the info is not provided with the cam at purchase.

I have a whipple on my AWD Denali and I am happy with my 2600-2800 converter that was spec'd out for me. If you decide to stay N/A for a while a higher stall would probably be better but again, call and check with whoever you have make your converter and have them spec it out for you based on your driving preference and modifications. Shouldn't cost anything extra and places like CircleD are active on this forum and have a lot of experience in this area.

 

if you're trying to keep up with another AWD truck with a procharger . . . . then a cam and full bolt-ons isn't going to make it . . .


Start looking for a blower, or go turbo