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Author Topic: 6.0L: building a strong, dependable engine  (Read 8730 times)
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KY_BOB
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« Reply #25 on: 10/26/07 04:00 PM »
Quote from: k15goose on 10/26/07 03:07 PM
Does anyone with an 07 or 08 happen to know the 3 digit casting number stamped into the heads of the 6.0L engine?  I really need to know.

Sorry, no idea.  Ask that question on performancetrucks.net and I bet you'll get an answer.
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02 Z-71  Vortech supercharged 3.12 pulley 10psi, 212/218 .558/.563 comp cam, LS6 valve springs, SMC meth injection, 42# injectors, Flex-a-lite Efans, 3"body lift, 33 12.50-17 procomp AT, 17x9 procomp wheels, AVIC-N2 NAV, 4.56 gears, 2500 stall converter, transgo HD2 shift kit, Vette servos, 80mm BBK throttle body, Edelbrock headers, custom exhaust, Cold Fusion nitrous, and too many more mods to list.

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Motion427
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« Reply #26 on: 10/29/07 11:45 AM »
The 6.0L LQ9 is in the AV.So far so good.Still wiring  and pulleys to put together.
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04 AV 6.0L LQ9,Z71
Comp Cam,Corsa,Dynatech,MSD,TVS 1900 Supercharger, Eaton Truetrac,Skyjacker,KMC,AVS.
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« Reply #27 on: 10/29/07 12:18 PM »
Quote from: FlaBouy on 08/30/07 05:01 PM
Here's mine........



 :thumbsup:Do you have the 427 installed and running yet?  What mod's did you have to do to make it work?  Total cost?  Is it a NEW from GM 427?
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« Reply #28 on: 10/29/07 12:26 PM »
Quote from: FlaBouy on 08/31/07 07:34 AM
Money is wasted in many forms..... but I believe that money spent on bringing joy in any form is not money wasted... Wave


Thumbs up! Thumbs up! :thumbsup:GOOD CALL!!!!!!!!! Thumbs up! Thumbs up! Thumbs up!
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Be sure to check my web page often for updates  to the 1000HP Avalanche project!

2002 Z71...Amber DRL's.
Still got that 408 cid stroker......6.7L ...Yeah, Baby!!!
It's a true hybrid...part Hummer, part Duramax, part rocket ship and part Avalanche.

02 Jeep Grand Cherokee Limited 4X4
02 VTX 1800C.....for sale
01 Jeep Wrangler Sport
79 Corvette L82
03 Dutchman Lite BH27-Pac-N-Play.....for sale
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« Reply #29 on: 10/29/07 12:33 PM »
Quote from: KY_BOB on 10/19/07 07:06 AM
He hasn't yet but with the exception of his rear diff, he's already setup to take the power on it.  No computer change would ne needed only the tune and he does his own tuning.



KY_BOB,
I'm still a little corn-fused here.  I can't seem to get a straight answer from this forum.  I get every answer from 5.3L to blown 572's.  Granted, I don't want to spend $20k getting there, but even $10k for marginal improvement over a worn out 5.3L is a huge waste of money, time and effort.  Can I realistically put  427ci LS7 in my AV and keep a budget of about $10k?...and make it run right with the 427's intended power band?  Or will I spend more money on towing than on gas? banghead
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Be sure to check my web page often for updates  to the 1000HP Avalanche project!

2002 Z71...Amber DRL's.
Still got that 408 cid stroker......6.7L ...Yeah, Baby!!!
It's a true hybrid...part Hummer, part Duramax, part rocket ship and part Avalanche.

02 Jeep Grand Cherokee Limited 4X4
02 VTX 1800C.....for sale
01 Jeep Wrangler Sport
79 Corvette L82
03 Dutchman Lite BH27-Pac-N-Play.....for sale
KY_BOB
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« Reply #30 on: 10/29/07 01:47 PM »
Quote from: ms38w on 10/29/07 12:33 PM
KY_BOB,
I'm still a little corn-fused here.  I can't seem to get a straight answer from this forum.  I get every answer from 5.3L to blown 572's.  Granted, I don't want to spend $20k getting there, but even $10k for marginal improvement over a worn out 5.3L is a huge waste of money, time and effort.  Can I realistically put  427ci LS7 in my AV and keep a budget of about $10k?...and make it run right with the 427's intended power band?  Or will I spend more money on towing than on gas? banghead

I don't think it's possable to do a LS7 for 10k.  If I'm not mistaken, that motor is about $12k alone.

As for it droping in place and bolting up, it's a fairly straight forward swap.

Check out this place.  They specialize in this kind of work.

http://www.redstarperformance.com/
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02 Z-71  Vortech supercharged 3.12 pulley 10psi, 212/218 .558/.563 comp cam, LS6 valve springs, SMC meth injection, 42# injectors, Flex-a-lite Efans, 3"body lift, 33 12.50-17 procomp AT, 17x9 procomp wheels, AVIC-N2 NAV, 4.56 gears, 2500 stall converter, transgo HD2 shift kit, Vette servos, 80mm BBK throttle body, Edelbrock headers, custom exhaust, Cold Fusion nitrous, and too many more mods to list.

Tuned with HPTuners
8.86@77.87mph in the 1/8th
ms38w
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« Reply #31 on: 10/29/07 02:40 PM »
Quote from: KY_BOB on 10/29/07 01:47 PM
I don't think it's possable to do a LS7 for 10k.  If I'm not mistaken, that motor is about $12k alone.

As for it droping in place and bolting up, it's a fairly straight forward swap.

Check out this place.  They specialize in this kind of work.

http://www.redstarperformance.com/

The morons at the dealer keep insisting that the 427ci LS7 is a big block...like I'd let THEM do the swap if they don't know even THAT much!!! Beating
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Be sure to check my web page often for updates  to the 1000HP Avalanche project!

2002 Z71...Amber DRL's.
Still got that 408 cid stroker......6.7L ...Yeah, Baby!!!
It's a true hybrid...part Hummer, part Duramax, part rocket ship and part Avalanche.

02 Jeep Grand Cherokee Limited 4X4
02 VTX 1800C.....for sale
01 Jeep Wrangler Sport
79 Corvette L82
03 Dutchman Lite BH27-Pac-N-Play.....for sale
ms38w
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« Reply #32 on: 10/30/07 08:43 AM »
Quote from: KY_BOB on 10/29/07 01:47 PM
I don't think it's possable to do a LS7 for 10k.  If I'm not mistaken, that motor is about $12k alone.

As for it droping in place and bolting up, it's a fairly straight forward swap.

Check out this place.  They specialize in this kind of work.

http://www.redstarperformance.com/

Thanks for the link.  I have now been in contact with them and they are worinkg up a few quotes for me.
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Be sure to check my web page often for updates  to the 1000HP Avalanche project!

2002 Z71...Amber DRL's.
Still got that 408 cid stroker......6.7L ...Yeah, Baby!!!
It's a true hybrid...part Hummer, part Duramax, part rocket ship and part Avalanche.

02 Jeep Grand Cherokee Limited 4X4
02 VTX 1800C.....for sale
01 Jeep Wrangler Sport
79 Corvette L82
03 Dutchman Lite BH27-Pac-N-Play.....for sale
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« Reply #33 on: 11/20/07 05:41 AM »
Quote from: ms38w on 10/29/07 02:40 PM
The morons at the dealer keep insisting that the 427ci LS7 is a big block...like I'd let THEM do the swap if they don't know even THAT much!!! Beating

Well are you sure you said LS7 because EVERY other 427 besides the LS7 is a big block...just playin devils advocate.

Now as far as a ZZ572, I would figure that would be close to impossible.

If your truck is 4x4 I would drop a Duramax w/ an Allison in it. Lots of my buddies have duramaxes and a few of them do low 13s. It is very reasonable to put a diesel engine in an Avalanche...but without 4x4 I would say stick with a LS7.
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« Reply #34 on: 11/20/07 06:57 AM »
Quote from: ChevroletSet on 11/20/07 05:41 AM
Well are you sure you said LS7 because EVERY other 427 besides the LS7 is a big block...just playin devils advocate.

Now as far as a ZZ572, I would figure that would be close to impossible.

If your truck is 4x4 I would drop a Duramax w/ an Allison in it. Lots of my buddies have duramaxes and a few of them do low 13s. It is very reasonable to put a diesel engine in an Avalanche...but without 4x4 I would say stick with a LS7.

The way I understand it, I would have to have the 2500 Avalanche to be able to handle the weight of the diesel.  Even the 2500's some people don't believe it would work...like anyone on this or any site would ever mislead you.  I am rethinking the whole diesel thing anyway.  The cost of the engine/tranny and the cost of diesel fuel these days makes it uneconomical.  But for the "Wow" factor...WOW!  I would be just as happy with a hi HP,hi tq gasser.  I can always wish and dream, but my truck is mostly a daily driver with the seasonal camping trips pulling a trailer.
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Be sure to check my web page often for updates  to the 1000HP Avalanche project!

2002 Z71...Amber DRL's.
Still got that 408 cid stroker......6.7L ...Yeah, Baby!!!
It's a true hybrid...part Hummer, part Duramax, part rocket ship and part Avalanche.

02 Jeep Grand Cherokee Limited 4X4
02 VTX 1800C.....for sale
01 Jeep Wrangler Sport
79 Corvette L82
03 Dutchman Lite BH27-Pac-N-Play.....for sale
KY_BOB
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« Reply #35 on: 11/20/07 07:36 AM »
Quote from: ChevroletSet on 11/20/07 05:41 AM
Well are you sure you said LS7 because EVERY other 427 besides the LS7 is a big block...just playin devils advocate.


Yes, I'm sure.

Quote from: ChevroletSet on 11/20/07 05:41 AM
If your truck is 4x4 I would drop a Duramax w/ an Allison in it. Lots of my buddies have duramaxes and a few of them do low 13s. It is very reasonable to put a diesel engine in an Avalanche...but without 4x4 I would say stick with a LS7.

Although anything is possible with enough time and money, that is not an easy swap.  To start with, it requires a body lift to make room for the Allison trans and that's just the beginning.
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02 Z-71  Vortech supercharged 3.12 pulley 10psi, 212/218 .558/.563 comp cam, LS6 valve springs, SMC meth injection, 42# injectors, Flex-a-lite Efans, 3"body lift, 33 12.50-17 procomp AT, 17x9 procomp wheels, AVIC-N2 NAV, 4.56 gears, 2500 stall converter, transgo HD2 shift kit, Vette servos, 80mm BBK throttle body, Edelbrock headers, custom exhaust, Cold Fusion nitrous, and too many more mods to list.

Tuned with HPTuners
8.86@77.87mph in the 1/8th
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« Reply #36 on: 11/21/07 05:01 PM »
I might have a 6.0L LQ9 for sale. It has 10 000KM,off an 05 .
We were supose to built this one for my buddy's Silverado,but he passed away last week end Sigh
The family is not sure if they gonna have it installed or not.
I should know in a couple of week's.I'll post it if it's available.
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Comp Cam,Corsa,Dynatech,MSD,TVS 1900 Supercharger, Eaton Truetrac,Skyjacker,KMC,AVS.
Yank converter on stand by.
06 TBSS,Bolt on's
10 Camaro RS/SS Bolt on's
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« Reply #37 on: 11/24/07 07:48 AM »
Quote from: Motion427 on 11/21/07 05:01 PM
I might have a 6.0L LQ9 for sale. It has 10 000KM,off an 05 .
We were supose to built this one for my buddy's Silverado,but he passed away last week end Sigh
The family is not sure if they gonna have it installed or not.
I should know in a couple of week's.I'll post it if it's available.

You have PM....
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« Reply #38 on: 11/24/07 08:11 AM »
PM replied.
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04 AV 6.0L LQ9,Z71
Comp Cam,Corsa,Dynatech,MSD,TVS 1900 Supercharger, Eaton Truetrac,Skyjacker,KMC,AVS.
Yank converter on stand by.
06 TBSS,Bolt on's
10 Camaro RS/SS Bolt on's
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« Reply #39 on: 11/24/07 08:25 AM »
Quote from: Motion427 on 11/24/07 08:11 AM
PM replied.

Replied PM replied too...  Thumbs up!
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« Reply #40 on: 11/29/07 12:17 AM »
Okay,  I've added a k&n intake and am getting it tuned at nelsonperformance on the 14th.  In the meantime I want to find a throttle body.  The 80mm that BBK makes for the vortech line thats listed second on their site only goes up to 2004.  If this isn't the one I need, do they make it?  Where else can I find one?

This is for 2008 with 6.0L.
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« Reply #41 on: 03/30/11 06:15 AM »
I have a 5.3L and have added a Banks Power Pack with Flowmaster exhaust. This supposedly boosted the hp to around 355. It is running much better but on the hills pulling my 7,000 lb trailer it could use a little extra, still. I have 3.42 gears and am wondering if switching to 3.73's would help any.

The other thing I was told was to consider a set of Corvette heads. Any opinions?
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« Reply #42 on: 03/30/11 06:51 AM »
If you are looking at heads do a cam too. Or maybe just do a cam. This will mean a complete tune though.

Avalon
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« Reply #43 on: 03/30/11 08:04 AM »
4.10 gears would be better for towing.
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