6.2L L92 Modification and Swap into 2008 Avalanche

MS03 2500 · Oct 10, 2014

That's going to be one fast AV, ya gotta take it to the track one time.

Maniac · Oct 10, 2014

Maybe is possible to take a pics with the x pipe and pacesetter connection? do you have cut out the cats? i'm interrest to see, with longtube if is possible to put cats on

Thank you

Cutout will make happy neighbors or not lol

frito · Oct 10, 2014

MS03 2500 said:
That's going to be one fast AV, ya gotta take it to the track one time.

2002blackedout2500 said:
amazing build - wish I had your skillz!

x2 on both of these.

AtomicVette · Oct 12, 2014

Moe02 said:
Looks great, how does it sound? And wow that's a lot of rust down there.

It sounds pretty good, now that my tuner has done some tweaking on it (delete VVT, DOD, and Some timing/fuel). Still have to schedule the full dyno tune.

09chevyavy said:
I like the cut outs but it seems like they hang pretty low and for looks and offroad ability anything hanging low will get damaged...

they are a little lower than I would have liked, but I never really go so far off road that I'd bottom out. haha.

MS03 2500 said:
That's going to be one fast AV, ya gotta take it to the track one time.

I was thinking that after getting it tuned, just to see what it'd do.

MS03 2500 · Oct 12, 2014

Yeah a stock Escalade can do a mid 14 in the quarter mile with the 6 speed tranny and AWD, I'm guessing it will do low 13s to high 12s

AtomicVette · Oct 12, 2014

Got the new Differential Cover installed. Looks way better than the factory, and doesn't leak!

AtomicVette · Oct 12, 2014

Was a nice day here in Oklahoma, so I decided to go finish up some details I've been meaning to do for awhile.

PlastiDip kinda day.

AtomicVette · Oct 14, 2014

dyno tune happened today.

http://www.youtube.com/watch?v=1dMgFWcMlVY

http://www.youtube.com/watch?v=xob9n_ivFU0

Ended up making 382HP and 378TQ so I'm happy with that. That's about 500 at the crank given 20 to 25 percent drivetrain loss.

MS03 2500 · Oct 14, 2014

Not bad I kinda thought you be around there.

Now track time. >:D

ms38w · Oct 17, 2014

05sunburst · Oct 18, 2014

Awesome truck

raiderron · Oct 18, 2014

So all this done in less than 3 months. Nice job and good time. Good thing had the helper to take up the slack.

AtomicVette · Oct 20, 2014

raiderron said:
So all this done in less than 3 months. Nice job and good time. Good thing had the helper to take up the slack.

Should have been faster, but had real life getting in the way all the time! haha.

mikeyjm1 · Oct 20, 2014

Awesome truck

AtomicVette · Oct 25, 2014

Finally got around to installing the Train Horn kit that the Garage Helper got me almost 3 years ago!

Installed the airtank, Garage Helper came to check on progress.

Installed the air compressor.

DouglasOak · Oct 25, 2014

You are gonna LOVE that setup!!!

Almost identical to mine, but I managed to keep everything up front, and out of the elements.

(P.S. you may wanna add a regulator, as the horns sound best around 150-160 PSI)

CLICK ON PIC for more train horn install info...

MS03 2500 · Nov 8, 2014

AtomicVette how is the truck holding up.

AtomicVette · Jan 7, 2016

It's been a while! Truck's doing great! I've upgraded to some new wheels and 37" tires now. I'm having the "stabilitrack abs traction control" disabled dashboard message randomly. Haven't had time to track it down yet.. I assume a faulty speed sensor somewhere.

MS03 2500 · Jan 8, 2016

Good to hear from ya.

Intimidatoruag · Jan 8, 2016

nice setup ... but is it me or does that 3rd pic look like a lot of rust?

MyBigToy · Jan 8, 2016

Intimidatoruag said:
nice setup ... but is it me or does that 3rd pic look like a lot of rust?

I believe a lot of what you are seeing is the "wax" dip rustproofing that has come off the frame.

mrcllusb · Oct 25, 2017

Man almost forgot about this post. I've got an 07 5.3 LTZ that a want to change motors in due to towing our camper. Just went to engine/machine shop yesterday to get quotes on purchasing a built motor from them compared to buying used 6.2 that I could just drop in!

JohnnieMo · Oct 25, 2017

mrcllusb said:
Man almost forgot about this post. I've got an 07 5.3 LTZ that a want to change motors in due to towing our camper. Just went to engine/machine shop yesterday to get quotes on purchasing a built motor from them compared to buying used 6.2 that I could just drop in!

FWIW you can bolt on a Magnacharger in about 16 hours. That is what I did with my 5.3L and it pulls up to 7,000lbs in any situation without any funny business. Depending on your skills and the parts availability of a 6.2L, it might be a better option. It will also net you more power and at a better RPM band.

redheadedrod · Oct 25, 2017

Check out this place.... This is likely where I will be getting my motor... Will be going with the 6.2 built for a Magnuson SC.

http://www.high-performance-engines.com/default.asp

archaicguy · Mar 7, 2018

JohnnieMo said:
FWIW you can bolt on a Magnacharger in about 16 hours. That is what I did with my 5.3L and it pulls up to 7,000lbs in any situation without any funny business. Depending on your skills and the parts availability of a 6.2L, it might be a better option. It will also net you more power and at a better RPM band.

Got any threads on your 30th? One of my Fav cars.

This is a great build thread btw and the helper adds a lot of eye candy

I will be looking to do something with my 5.3 in the near future to help towing the boat etc.
Thoughts range from rebuild it and add a supercharger or go with a 6.0, 6.2
Just trying to keep budget to a minimum as I already have enough projects going on already.