Engine Options...

[Greg]

Question:

I'm on my third H2, had a 03, o4, now a 05, I have about 38K on this one and thinking of keeping it even after the normal put 60k on it and trade it in.

Are there any after market engines (with more power!) to put in. or hjust put and rebuild?

What's the take on this one?

Thanks...

Greg

[Alan06SUT]

The stock engine should go at least 200K. We have this engine in a 2500 w/ 260K on the original motor. I bet the new 6.2L will go in easily if you must change it.

[f5fstop]

Originally Posted by Alan06SUT

The stock engine should go at least 200K. We have this engine in a 2500 w/ 260K on the original motor. I bet the new 6.2L will go in easily if you must change it.

It might require some minor front end work ....Just guessing....

[wilfred]

I think the H2 will eventually get the new 6.2L and I read it somewhere (don't remember where exactly, so nothing official) that a new H2 is coming soon. As early as model year 2008 so maybe we will soon see camouflaged prototypes on the web soon?

Better yet, I hope they will offer the duramax diesel on the new one as well!

[timgco]

Originally Posted by f5fstop

It might require some minor front end work ....Just guessing....

hmmmm. possible front end work to fit a possible new engine. I guess it's possible that the H2 will be getting a possilbe face lift.

and it's all just a guess.

[johndjmix1]

Why would you ever transplant another gas engine into the H2?

--John

[MONSTERMATT]

DURRAMAXX!!! if u maintain the engine now the truck will last well into 200k synthetic amsoil every 3k on the nose

[HUMMERcustoms.com/TAZ]

Take engine You got and add programer do all you can to get it to breath in and out. Then go with a LS6 set of heads and cam then if handheld programer will not up fuel and timing enough, get in touch with Allen Nelson and tell him what you got and let him program a PCM for You and max it out. Retain extremely good drivability but, will grunt and go when You want it. Do some tranny work and never worry about down shifting to much on hills. may have to increase fuel pressure using Keene Bell boost a pump so you do not have to chnage from factory or add a second pump. Reduces potential for problems. KenP had one on his old Black Beauty.

I accomplished it without doing the LS6 equipment and used handheld with all the air flow i could get and long neck headers which increase low end and true dual exhaust. I could have used tranny upgrades to make it even better but, i was eating rice rockets like crazy. When i put on supercharger with 6lbs. of boost i blew away my cousins new Vette in a 0 to 60. He was gaining and if it had been to 100 he would have caught me, maybe. I had pedal left. Now he will not run me anymore because he laughed when i told him i thought i could at least give him a run for his money. We are buddies but, he is a sore loser and always has been. But, right now with magnuson, tuning and all the other add-ons etc. We have around 550HP at the ground. If You have ever seen KenP Ligenfelter video it shows you how violent the take off is. Mine is so bad that i had no choice but, to pedal it until i got to figure out to point the rig slightly off center and then let it go and allow the torgue steer just take me on line. The 6.0L in the H2 is a beast waiting to be turned loose. I would not pull my motor for any motor unless i blow it up and then not sure.
we still have to raise boost to about 18lbs. and add water/methanol inj. along with co2 spray on the aftercooler to bring temp down on supercharger.

So do not give up on that motor. Go to other GM forums and see what people are doing with the motor. Go to Nelsonperformance.com and go to the truck forum and see what they do with it and turbo's etc.

You can still take an old 289 high performance and make it as bad a motor as you would want to drive daily on the street. I had one in a 68 Mustang in early 70's and owned all the big blocks. Could not be beat out of the hole and could not be beat on 1/8th mile track but, never loss a race not even on 1/4 mile. Paid for part of college pink slipping in Olathe, Kansas while in school in KC, MO. Tape a $100 bill to dash and after i dumped clutch if you could raise up and get it, Yours. If not I kept your $50.

I will do the LS6 heads and cam later to really get the full use of the supercharger on now and tranny upgrades Dragon and I need to do next on the list.

I have gone or will be using software laptop programing next after Dragon finishs the electronics upgrades for a sponosor.

What ever makes anybody happy is what you should do. I just do not understand changing the engine you got when it is one of the most power added to engines i think GM has ever made since the 283 in the 60's and 70's. You can find almost anything to go on it but, you have to spend money and get good tuning from somebody or learn to do it yourself. It is interesting.

Dragon and i have been studying and I have been visiting with one of the best performance upgrade companies in the nation that just happens to be in a city near me. The head guy said the H2 already has got as good and flexible engine to use if you want power on any level. He has put together suggestions, well and confirmed some of what i thought i wanted to do as far as the path to take to get to 1000HP at the wheels and most likely not do any bottom end work he said. The bottom is bullet proof he says. We will see hopefully this year.

I have not looked at 6.2L heads but, if you do not increase fuel and air any set of heads are useless as a larger ported and polished set of heads is for is to flow more fuel into cylinder and exhaust out faster.

You just have to decide what You want out of Your motor and set down with any performance shop You trust and the 6.0l will do it for You. I Love that motor and hope it holds up to what i plan on putting it through. If not then i will blow it and do something different. maybe see if a 572 crate motor will fit with a blower on it.

Problems is what do you want and is it worth spending the money for it. To me i just like making something do what it was not thought of for that design. H2 will crawl with anything and I'm proud of all who do that. where I'm at it is as flat as a pool table. Rice growing country. So my challenge is to make people fear it on a straight run 0 to 60, 1/8 mile or 1/4 mile. Plus hopefully run it on a mile speed trap late in 2007 and see what the topend speed the brick with wheels can go from the stop to one mile. The Texas Mile in Goliad TX. I hope if we get there this year many will come and help in pit. If not this year will shoot for early 2008 and again in late 2008. They are affiliated with Bonneville Salt flats group. Just a different format.

I plan to keep the rig street drivable all the time except for when Dragon is always got it tore down adding new electronics.

I know DRTY XXeleventithy chapter for CO HUMMER to read now. He is going to have to take speed reading course to keep up i guess.

TAZ

[obzidian]

those new 6.2L heads are a bastard child of the new ls7 heads, just retrofitted for a 15* valve angle and 4.00" bore. They are the latest, and possibly, greatest set of heads you can have right now, and they are GM, not an aftermarket casting like AFR or ETP.