Yuriy Kozhevnikov

Hello to all!
I have a Hummer H2 2003 year with LQ4 6.0l. Now I have this specs:
1)Full exhaust OBX with long tubes without catalycs
2)Cold Air intake VOLANT with tuned MAF
3)Spark Plugs Ruthenium HX
4)Electric Fans from Escalade
5)4L80E trans
6)Delete EVAP
7)Bigger oil cooler for trans

Now I want just a little more power from low end. I have dissasembled engine from Hummer H2 2009 year 6.2 L92H.
If I install heads, intake with rails and injectors, throttle, ignition coils and camshaft from it. Will it give me some more power?
I have stock camshaft and one from TSP (KHP PERFORMANCE) 222/234 .600/.600 113 LSA WO:18273

I`m using my Hummer for daily drive and for offroad. Who can advise will it be good idea to make this modifications or it money down the drain?
I don`t want to buy something else for now, just use all that I have from L92H

I have HPtuners and people who will tune all after that.

Thank you all and have a good day!

Ls7colorado

iTrader: (3)

If anything you will loose low end from say below 3000rpm or so... But you will pick up quite a bit from 4000-redline

Best thing to do would be a LSA blower or small turbo

Yuriy Kozhevnikov

yes, LSA blower or small turbo will be better, but it will cost about 3-4 thousand US dollars. Now I decide whether to do all this and what I will get in the end. There are many things to do, and the result may not be worth it