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Author Topic: 2002 Suburban 2500 Build Thread, Part 1  (Read 56702 times)

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Online Flyin6

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Re: 2002 Suburban 2500
« Reply #200 on: November 29, 2018, 09:47:14 PM »
Next, I got after those worn out rear hatch struts. The new ones were spendy, but they did the trick
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Re: 2002 Suburban 2500
« Reply #201 on: November 29, 2018, 09:48:33 PM »
They are easily replaced by pulling out a retention clip and just pulling the strut off of the stud to which either end mounts.
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Re: 2002 Suburban 2500
« Reply #202 on: November 29, 2018, 09:50:20 PM »
I almost never used the third row seating, and I want to guarantee I don't end up with some baby or kids seats back there, so I ripped out the third row to make room for stuff
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Re: 2002 Suburban 2500
« Reply #203 on: November 29, 2018, 09:55:57 PM »
Lot of room in there now ^^^^^^^

Next up was the Glock mod. I pulled the lower panel and the dash surround trim, which does not really have to be pulled (I think) and went to work on my newest mount.

I'm staying with the familiar G19/G17/G23 platform I train with. This weapon is a gen 3, whereas my carry weapon and the one in the DMax are gen 4.

Also I decided to run with a right holster this time and mount it upright. It is not perfect to grab, but it mounts and tucks in much better than the cross mount I have used in the past.

I used #10 machine screws and thread-serts to hold things in place.
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Re: 2002 Suburban 2500
« Reply #204 on: November 29, 2018, 09:56:47 PM »
Note the upright attitude of the mount
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Re: 2002 Suburban 2500
« Reply #205 on: November 29, 2018, 09:58:42 PM »
The draw is still fast

Filmed at one million frames per second, here are four consecutive frames

Whew!
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Offline JR

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Re: 2002 Suburban 2500
« Reply #206 on: November 29, 2018, 11:13:03 PM »
Did you corner the market on LEDs?

That glock needs night sights,,,,,,,,,,,

You going to add a drawer setup back there? Lots of secure storage and a long gun or 2.

So far I like the direction!
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Offline TexasRedNeck

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Re: 2002 Suburban 2500
« Reply #207 on: November 30, 2018, 05:59:30 AM »
He keeps canting that rig and he’ll need some of these




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Offline stlaser

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Re: 2002 Suburban 2500
« Reply #208 on: November 30, 2018, 08:23:46 AM »
He keeps canting that rig and he’ll need some of these




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 :popcorn:
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Offline cruizng

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Re: 2002 Suburban 2500
« Reply #209 on: November 30, 2018, 08:51:27 AM »
Brutal.. LOL This is my fav part.  :shocked:
Mike
Sold the DMax in MN and am currently vehicle less.

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Re: 2002 Suburban 2500
« Reply #210 on: November 30, 2018, 09:21:00 AM »
He keeps canting that rig and he’ll need some of these




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Ah, young grasshopper

You need to review strong arm shooting

Whatever angle is natural is the one you use

No extra time to "Right" the weapon and align it with the standard datum plane...

Rookies...  ;-)))
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Re: 2002 Suburban 2500
« Reply #211 on: November 30, 2018, 09:26:51 AM »
Did you corner the market on LEDs?

That glock needs night sights,,,,,,,,,,,

You going to add a drawer setup back there? Lots of secure storage and a long gun or 2.

So far I like the direction!
JR,

Word of thanks and you are awarded a new nickname,

"Old Faithful!"

You see everytime I make an entry in one of my build threads, the "IBs" (incessant boneheads) pay no attention what so ever, except to look for some obscure angle to kidnap and use for their clever little (Puny, really small, insignificant, down right agravatin') comments.

But you, my friend, actually pay attention and offer some commentary about what actually took place, and not just some comment for the sake of squawkin'

Good for you! You are promoted to the next billet, whatever that is, and the rest of them remain on my "Bad boys and girls" Christmas list.

Note: A small increase in compensation accompanies this recognition!
« Last Edit: November 30, 2018, 09:27:45 AM by Flyin6 »
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Offline JR

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Re: 2002 Suburban 2500
« Reply #212 on: November 30, 2018, 11:53:27 AM »
Cool a raise, Merry Christmas to me!

HoMeboy sights? At least they are night sights, but how would a holster work?? That is point and shoot range anyway.

Off to load the rig for 2 nights in the snow. This is tent camping to boot.
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Offline TexasRedNeck

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Re: 2002 Suburban 2500
« Reply #213 on: November 30, 2018, 12:55:56 PM »
My work as a (dot) artist is so under appreciated


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Offline Bob Smith

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Re: 2002 Suburban 2500
« Reply #214 on: November 30, 2018, 01:48:30 PM »
Only by some Charles, only by some :beercheers:

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Re: 2002 Suburban 2500
« Reply #215 on: November 30, 2018, 09:06:48 PM »
Work as a DOT artist...

And I thought cats and dogs sleepin' together was the craziest thing I ever saw

Now it has become a job title

We have slidden oh so far...

OK, so I've been driving the thing some. Finally registered it after crawling over it for a few days. I have to say, it is a bit more spunky than my Suburban of old which had the 5.3. This one gets right with the program. Not neck snappin' or anything, but it feels like it has that grunt everyone who is not an infantryman talks about.

So having driven a mile or two, I can concur that the thing might do well with the bolt on/tune thing. At least for awhile.

I think I'll start with the standards

Intake
LT headers
Free exhaust
Better plugs
Then that BlackBear tune
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Re: 2002 Suburban 2500
« Reply #216 on: November 30, 2018, 09:23:03 PM »
OK, so help the warrant select his headers

Going with Speed Engineering headers and Y-Pipe and a DynoMax 4" cat back. Actually, no cats, so technically, a flange back.

They have 1 3/4" and 1 7/8" headers, which ones should I be looking at?

Linky to the biggins:

https://www.speed-engineering.com/shop-by-vehicle/1999-13-lsx-trucks/exhaust/headers/speed-engineering-truck-suv-1-7-8-longtube-headers-y-pipe-1999-2006.html

Please keep in mind I will be upgrading to the L-92 heads and a good torque cam in the not too distant future.

So, obviously, the closer I stay to LQ4 architecture, the more the needle swings toward 1 3/4"
But start throwing in some deep breathing where I'm swing for the fence and 500-550 HP, the 1 7/8 would fit in better. Knowing me like I do, a blower would not be out of the question after a gold strike at the farm.

I'll also add the GM gaskets, good bolts, O2 sensor extensions, and mo-gooder spark plug wireses.
« Last Edit: November 30, 2018, 09:40:38 PM by Flyin6 »
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Offline TexasRedNeck

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Re: 2002 Suburban 2500
« Reply #217 on: November 30, 2018, 10:52:05 PM »
I’ll do my best to redeem myself.

I’d stick with the smaller diameter unless you are for sure going forced induction.


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Re: 2002 Suburban 2500
« Reply #218 on: November 30, 2018, 11:11:37 PM »
My work as a (dot) artist is so under appreciated


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Join the club....
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Offline TexasRedNeck

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2002 Suburban 2500
« Reply #219 on: December 01, 2018, 08:16:41 AM »
Don,  before you build a dragster here’s some light reading for you. 

Careful on the bigger is better train.

You can make big power on that motor but it come above 4000 rpm and that’s not a real drivable combination.

Note on this 550hp project they still use 1 3/4 headers and they lost 20+ lbs of torque down low, and that was probably already down from stock since they changed the cam before the heads.
https://www.hotrod.com/articles/ccrp-0705-chevrolet-ls2-l92-cylinder-heads/
For reference
https://help.summitracing.com/app/answers/detail/a_id/4809/~/chevy-lq4-engine-specs

Discussion on torque.  I’d still recommend a tighter rv/towing cam that lends itself to a super charger later as an upgrade to your set up.
https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/lq4-2500hd-towing-cam-509771/page2/

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« Last Edit: December 01, 2018, 08:28:36 AM by TexasRedNeck »
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Offline Bigdave_185

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Re: 2002 Suburban 2500
« Reply #220 on: December 01, 2018, 09:00:19 AM »
Charles,  what are you doing? Bigger is always better, more HP always is best response.   Your messing up the whole plan to get us replacement thread for square d.  We need a super charger swap, SAS, a sleeping corders and a gun turret. No one wants to see that wimpy stuff.


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Re: 2002 Suburban 2500
« Reply #221 on: December 01, 2018, 10:27:49 AM »
Charles,  what are you doing? Bigger is always better, more HP always is best response.   Your messing up the whole plan to get us replacement thread for square d.  We need a super charger swap, SAS, a sleeping corders and a gun turret. No one wants to see that wimpy stuff.


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I’m kinda the opposite, he should keep it closer to stock and drive it. Let’s face it the last build didn’t get completed because his priorities changed, boys got older and he has this farm. Now he added wood heat which will consume more time than he may realize. Keep the thing closer to stock and use and abuse it. He doesn’t need another toy he still has cmax & sq d (which will need parted out at some point too btw) more man hours.
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Re: 2002 Suburban 2500
« Reply #222 on: December 01, 2018, 11:54:19 AM »
The LQ4 was a bit of a dog with 8-9K behind it. I do endorse tuning and RV/tow cam and maybe a little port work on the heads along with freeing up the intake and exhaust.

Will improve mileage and give it some more go while maintaining drivability


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Re: 2002 Suburban 2500
« Reply #223 on: December 01, 2018, 04:16:45 PM »
Was looking at this cam:

www.vincicams.com

DUR @ .050" 210*/218*
 LIFT .552 / .552
LSA 114*
4A    "BUTT KICKER"
POWER  RANGE  1600 TO 6000
 PROVIDES  HIGH TORQUE & HP GAINS WITHOUT LOW END LOSSES
 GOOD THROTTLE RESPONSE
5.3L - 6.0L
PERFECT FOR THAT "DRIVE-IN" SOUND
 GREAT CHOP TO THE  IDLE

Torque cam used by 2500 HD drivers for towing boats and heavy loads. Loads of good reports

Headers/exhaust/Intake ordered
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Offline TexasRedNeck

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Re: 2002 Suburban 2500
« Reply #224 on: December 02, 2018, 07:24:57 AM »
I like it. Still got good LSA that would lend itself to some FI later.

Makes me want to mod my LT1 in the Denali.


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Re: 2002 Suburban 2500
« Reply #225 on: December 02, 2018, 08:45:44 AM »
So, as I continue to evolve the possible direction of this build, you folks had it right from the beginning.

That is, do some additions to the stocker and drive it. I intepret that as: build a NA motor bit by bit while its fun, I can afford it in terms of money and time, and did I mention, as long as its fun.

I always look to create something unique, so in all honesty I doubt I would hold at the tune and cam line.

So Now that I have renewed my store of knowledge on these LS motors, I will start adding parts to the stocker. Along with the parts I mentioned, inexpensive beehive springs, fresh seals, and moly pushrods to bullet proof the valvetrain for the next 100K+ and maybe a throttle body and some intake porting, dunno.

But in addition to that, I have taken note of the relative low cost of stroker kits.

I may just decide to do a parallel engine build of a replacement motor while driving my tweaked one. more cubes always makes sense and it looks like the 408 cu in kits are low cost and a 427 may not be a stretch either. Going to a more exotic 454, well, I don't know since building a high torque 500+ HP 408 is almost hard not to do. The 408 would make more than the peak torque of the stock 6.8 at like 2200 rpm, and that's straight up pulling power.

So lets see how the improvements evolve this truck while the thing gets other improvements as well. Off to the races!
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Offline Nate

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Re: 2002 Suburban 2500
« Reply #226 on: December 02, 2018, 09:37:36 AM »
if you are talking about building a swappable motor while you drive it, don't you have a high dollar built cummins just sitting there?  was that cummins not built for pure power, or am I missing something completely here?

by no means am I trying to throw you off your intended course, just a question that was going thru my grey matter.
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Offline stlaser

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Re: 2002 Suburban 2500
« Reply #227 on: December 02, 2018, 09:46:32 AM »
if you are talking about building a swappable motor while you drive it, don't you have a high dollar built cummins just sitting there?  was that cummins not built for pure power, or am I missing something completely here?

by no means am I trying to throw you off your intended course, just a question that was going thru my grey matter.

Boss, needs to suck it up and just finish SQ D & add it to the fleet. Why don’t you go pick that up Nate and drag it back to Norm?  :popcorn: I heard thru grapevein he was still willing to get it running.. :tongue:
« Last Edit: December 02, 2018, 03:55:01 PM by stlaser »
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Offline wyorunner

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Re: 2002 Suburban 2500
« Reply #228 on: December 02, 2018, 11:36:01 AM »
if you are talking about building a swappable motor while you drive it, don't you have a high dollar built cummins just sitting there?  was that cummins not built for pure power, or am I missing something completely here?

by no means am I trying to throw you off your intended course, just a question that was going thru my grey matter.

Boss, needs to suck it up and just finish SQ D & add it to the fleet. Why don’t you go pick that up Bate and drag it back to Norm?  :popcorn: I heard thru grapevein he was still willing to get it running.. :tongue:

Nate could probably go get it and Chief not know it’s gone!!! Since it has moved to a new shop it could move to another without anybody really knowing... the whole out of site out of mind thing....

Offline Bigdave_185

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Re: 2002 Suburban 2500
« Reply #229 on: December 02, 2018, 12:28:59 PM »
Can one of the mods open up a donation or a go fund me to pay for transportation?


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Re: 2002 Suburban 2500
« Reply #230 on: December 02, 2018, 07:19:33 PM »
I would highly recommend talking to the tuners first,  before buying any parts.  They've got those chevys figured out and can steer you to the right combo.  I'm guessing headers probably aren't needed,  nor a cam, but I could be wrong.
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Re: 2002 Suburban 2500
« Reply #231 on: December 02, 2018, 09:44:30 PM »
I would highly recommend talking to the tuners first,  before buying any parts.  They've got those chevys figured out and can steer you to the right combo.  I'm guessing headers probably aren't needed,  nor a cam, but I could be wrong.
Ken,
Headers are def a power adder, and most threads call the LT a solid 25 RWHP.

The cam as installed from chevy is as close to junk as they can build. From what I remember building these motors (Yes I built a couple LS motors in my past) the cam in these is where all the power is up to the limit of the port configuration. There is a hundred horsepower, easily in a cam in the sickly cammed LQ4. These motors, Cam/tune/LT are 450 HP motors and with better mileage.

I am looking at combos, but as per your suggestion, I started with an email to BlackBear. No response so far, so tomorrow, I plan to chat with the cam guy and get his take on the right combo.
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Online Flyin6

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Re: 2002 Suburban 2500
« Reply #232 on: December 02, 2018, 09:49:08 PM »
Can one of the mods open up a donation or a go fund me to pay for transportation?


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Love ya man, but under no circumstances will anyone spend a single dime on anything for me. Not that anyone would actually do it, but its not the way I roll. I'll accept donations for our Christmas giveaways or for the aid to folks in need, but not for me. God has blessed me abundantly so I'm good.

As for SquareD, I mentioned an issue with it that is hard to solve that is not mechanical in nature. As for unbolting all that stuff and sorting the converter/flywheel, it's just work. I do not however want to get into that now (Ever??) The other thing is that in the end it is a straight up two person truck, something I have never been comfortable with, but was willing to roll with along with the concept of it pulling a tactical trailer. If it goes on, it will be with that notion. For now, I'm not sure...
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Re: 2002 Suburban 2500
« Reply #233 on: December 02, 2018, 09:54:02 PM »
if you are talking about building a swappable motor while you drive it, don't you have a high dollar built cummins just sitting there?  was that cummins not built for pure power, or am I missing something completely here?

by no means am I trying to throw you off your intended course, just a question that was going thru my grey matter.
Ya, Nate, I just want to stay gasser and LS with this burb. It would be converted to a Duramax if I went diesel. But the LS motor is cool and it gives me options...gas or diesel to DD. That Cummins motor is one pretty powerful and very heavy power plant. It should make 1200-1300 ft/lbs and that would be a bunch for that burb. A healthy gasser belting out 450-500 ft/lbs but using 350 at driving speed would be plenty good enough and sporty to make for a satisfying ride. So I'll keep this one a bit more sane than some of the things I have concocted in the past.
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Offline JR

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Re: 2002 Suburban 2500
« Reply #234 on: December 02, 2018, 09:54:20 PM »
Agreeing with most here Don. Add on's will get you going more to your needs. Yes the 6.0 heads are often swapped for 5.3 as they flow better. Heck the 5.3 can do almost 400hp with mild tuning and exhaust.

Another thing is LS exhaust manifolds flow very well. Headers are cool but for your needs and longevity stay with cast. Hooker makes a nice set of coated cat that better than stock.

Do the exhaust, a new cat and throttle body (you have a manual throttle, right?). Headers will get that 25hp, but at 5000 rpm! Have it tuned, add a shift kit and tune the trans so it doesn't defuel as bad and shift.

If you build a motor, look for a 6.2 vs the 6.0. They were rated for around 350 stock and have bushed piston pins. May as well get aftermarket heads if you go that far.

I think 450+hp with good low end torque should be very easy. Plus it is with little to no down time. Even the rear OK for what you want unless you tow something crazy. 
« Last Edit: December 02, 2018, 09:55:43 PM by JR »
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Re: 2002 Suburban 2500
« Reply #235 on: December 02, 2018, 10:14:19 PM »
Agreeing with most here Don. Add on's will get you going more to your needs. Yes the 6.0 heads are often swapped for 5.3 as they flow better. Heck the 5.3 can do almost 400hp with mild tuning and exhaust.

Another thing is LS exhaust manifolds flow very well. Headers are cool but for your needs and longevity stay with cast. Hooker makes a nice set of coated cat that better than stock.

Do the exhaust, a new cat and throttle body (you have a manual throttle, right?). Headers will get that 25hp, but at 5000 rpm! Have it tuned, add a shift kit and tune the trans so it doesn't defuel as bad and shift.

If you build a motor, look for a 6.2 vs the 6.0. They were rated for around 350 stock and have bushed piston pins. May as well get aftermarket heads if you go that far.

I think 450+hp with good low end torque should be very easy. Plus it is with little to no down time. Even the rear OK for what you want unless you tow something crazy. 

Well, I already ordered the 1 3/4" LTs and big ole' exhaust. I have an inbound tracking numbs on it. I will chat it up with the cam guy tomorrow, and may close on the rumble stick while on the phone. I like the Trail blazer/SS 6.0 intake along with a 90mm TB with now thinking I stay with cathedral post heads like those 5.3L castings you mentioned, although ported. 300CFM from those heads is sick.

As for cubic inches. I'd have to factor in cost effectiveness. So my 6.0 is good for another 100K+ so no point in getting another LQ4 and building it to swap. a 6.2 I just found is retailing for $1800 with 96K. So a 408 stroker kit is less than $2500 which is a difference of a few hundred for 44 cu/in more. So I buy another 6.0 and build it the way I want. Torque monster 408, then one weekend, swap it in place of the 6.0. My LQ4 sells for what I spent on the 6.0 core so that's a wash. It is a sub $4K for a very reliable 500HP+, nearly 500 ft lbs motor. That is what makes the most sense to me at the moment. I'll sort out the other stuff like manifold and throttle body and base tunes along with transmission stuff now so that the eventual swap will be much more forgiving.
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Re: 2002 Suburban 2500
« Reply #236 on: December 03, 2018, 08:51:10 AM »
Can I ask a dumb question? I can't seem to see it mentioned so maybe it is obvious. What transmission is in it?  :facepalm:
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Offline longball

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2002 Suburban 2500
« Reply #237 on: December 03, 2018, 09:33:58 AM »
Can I ask a dumb question? I can't seem to see it mentioned so maybe it is obvious. What transmission is in it?  :facepalm:
I’ve been wondering the same thing. On my 2001 Silverado I could adjust pressure and shift points with a basic tuner but I’m curious if it will hold the type of power Chief is after.


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Re: 2002 Suburban 2500
« Reply #238 on: December 03, 2018, 09:38:00 AM »
Can I ask a dumb question? I can't seem to see it mentioned so maybe it is obvious. What transmission is in it?  :facepalm:
4L80
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Re: 2002 Suburban 2500
« Reply #239 on: December 03, 2018, 09:40:26 AM »
Can I ask a dumb question? I can't seem to see it mentioned so maybe it is obvious. What transmission is in it?  :facepalm:
I’ve been wondering the same thing. On my 2001 Silverado I could adjust pressure and shift points with a basic tuner but I’m curious if it will hold the type of power Chief is after.


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I'll address the transmission a little later. I think I'll concentrate on getting it shifting properly, and shift points at the right place for the cam/heads, then go inside and add a couple more clutches and the proper converter. The GM 4L85 which is my trans with two extra clutches holds 680 ft lbs
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Re: 2002 Suburban 2500
« Reply #240 on: December 03, 2018, 11:41:13 AM »
Starting to tighten up the shot group on this motor thing

Not there but so far:

Spec'd cam
Tomphson performance ported GM 243 heads
Stock size valves
.030 head gaskets
Long tubes
Open exhaust
90mm TB
Silverado SS intake
36 or 42 pph injectors
2800 ish stall converter

then a bit later on:
408 short block (6.7 L)
More cam to equal the same port velocities as the torque cam on the 6.0

That will start me off in the 450-480 RWHP range/450 tq and down low

Then raise that bar to 550 HP/ 500-525 tq at the wheels.

That should move that burb very nicely and with the 2800 launch it pdq while maintaining a tow happy rig.
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Re: 2002 Suburban 2500
« Reply #241 on: December 03, 2018, 02:08:18 PM »
I’ll just leave this here
https://www.gmperformancemotor.com/parts/19331576.html


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Re: 2002 Suburban 2500
« Reply #242 on: December 03, 2018, 03:33:48 PM »
I’ll just leave this here
https://www.gmperformancemotor.com/parts/19331576.html


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Ah man, I can't do that

A huge departure from stock and the LS can make all that power easily without the added weight and fuss

Would look cool though!
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Re: 2002 Suburban 2500
« Reply #243 on: December 03, 2018, 03:59:40 PM »
Why not just a GM longblock if going that far? Has about all you are doing, just swap the intakes.
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Re: 2002 Suburban 2500
« Reply #244 on: December 03, 2018, 04:29:15 PM »
I’ll just leave this here
https://www.gmperformancemotor.com/parts/19331576.html


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Ah man, I can't do that

A huge departure from stock and the LS can make all that power easily without the added weight and fuss

Would look cool though!

Since when has that ever slowed You Down? Plus, more mass to take cover behind....


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Re: 2002 Suburban 2500
« Reply #245 on: December 03, 2018, 07:18:58 PM »
 :popcorn:
Living in the remote north hoping Ken doesn’t bring H up here any time soon…..

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Re: 2002 Suburban 2500
« Reply #246 on: December 03, 2018, 08:51:04 PM »
Why not just a GM longblock if going that far? Has about all you are doing, just swap the intakes.
Well, does GM offer a 408 long block?

The other point is I'd want to build it myself and select the parts I want.

Right now, I think you can only get a 6.2 and a 427, LS7 but that is over 10K

I can do this well under 3K including the new cam!
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Re: 2002 Suburban 2500
« Reply #247 on: December 04, 2018, 01:12:51 PM »
Hey Chief- I was under the impression that Norm might have the work around for your Square D issue in stock/barn/field/neighborhood?  Have you checked that route yet?  Solves both issues if you drop the challenge on him!  :beercheers:
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Re: 2002 Suburban 2500
« Reply #248 on: December 04, 2018, 07:26:27 PM »
Hey Chief- I was under the impression that Norm might have the work around for your Square D issue in stock/barn/field/neighborhood?  Have you checked that route yet?  Solves both issues if you drop the challenge on him!  :beercheers:
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Re: 2002 Suburban 2500
« Reply #249 on: December 06, 2018, 05:52:57 PM »
So today I removed an easy 100 pounds of ugly weight

Yea liking that much better
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