2006 Duramax 6600 Turbodiesel to Deliver Class-leading Torque in a More Powerful and Refined Package



Engine output for Chevy Silverado HD and GMC Sierra HD increased to 360 horsepower and a class-leading 650 lb-ft of torque
Significant updates result in smoother, more refined operation, as well as reduced emissions
New glow-plugs reduce start time by as much as 50 percentPONTIAC , MICH. – Later this year, GM Powertrain will introduce a new 6.6L Duramax 6600 turbodiesel V-8 (RPO LBZ) for the 2006 model year Chevy Silverado HD and GMC Sierra HD with class-leading horsepower – 360 (268 kw) at 3200 rpm and class-leading torque, at 650 lb.-ft. (881 Nm) at 1600 rpm. In addition to the power increase in the Silverado and Sierra, all 2006 Duramax engines have been significantly revised to deliver lower emissions and significantly improved quietness and smoothness in every application.
The 2006 Silverado HD and Sierra HD with the Allison 6-speed automatic transmission will be equipped with a significantly revised 310 horsepower Duramax 6600 (LLY) through the third quarter of 2005. It will be replaced in these applications in the fourth quarter of 2005, by the higher output, 360-horsepower Duramax (LBZ).



http://media.gm.com/servlet/GatewayServlet?target=http://image.emerald.gm.com/gmnews/viewmonthlyreleasedetail.do?domain=74&docid=16955



Good things are coming

OCDUNE

Wouldn't you feel like an ass for getting an 06 now though?

.

More from the article

"while maximum boost remains at 20 psi. " YEAH RIGHT

Another new feature of the Duramax 6600’s turbo system is the capability of the variable-geometry turbocharger to provide exhaust braking. This function is available on some medium-duty truck models and can replace add-on exhaust brake hardware. With the new system, braking is controlled by a signal from the engine controller and can be activated by the driver.

The comprehensive list of changes and upgrades to the 2006 Duramax 6600 includes:

Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
Upgraded main bearing material increases durability
Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1
Piston pin bore diameter increased for increased strength
Connecting rod “ I ” section is thicker for increased strength
Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
Improved glow plugs heat up faster through an independent controller
Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
Air induction system re-tuned to enhance quietness
EGR has larger cooler to bring more exhaust into the system
First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions



You will have more power from the factory but you will be back to square one for and chips/programmers. Same situation as the LLY guys in 04

OCDUNE

Same motor, new tuning. And finally an air box, and cooling system that will handle it.

So my truck that I already have ordered for a delivery date of Feb 06 should have the new engine right??? Does GM base fiscal year off the calender or like us in the military from Oct.-Oct.?

The new trucks will be here last quarter of 2005 per the press release

OCDUNE

OCDune, can you find all of the threads that ask about this and reply with this info please? LOL.. kidding.. about time we got some solid numbers!

Looks like we will need an LBZ forum! :eek:
Looks like the turbo is going to make more low-RPM boost - To get the same emissions cruising at 65 in 6th gear with lower compression, there will have to more air at a lower RPM than the LLY. If the LLY can hit 1400deg stock, and the LBZ is going to make 360HP up on the top, the turbo will HAVE to be bigger or go even higher on the EGT's.

Does anyone know what impact these "engine" changes will have on fuel economy?

Since fuel economy is not one of the listed improvements, I am suspecting the MPG will be about the same (or possibly less). (The 6 speed in the new Allison should help the economy when cruising empty, but what about the engine changes?)

What does this mean "360 / 268 @ 3200 rpm"? Or "650 / 881 @ 1600 rpm" It's under the specs they give.

Packer

hp/kw, and ft lb tq/Nm! Just a different measuring method

What does this mean "360 HP/ 268KW @ 3200 rpm"? Or "650 TQ/ 881NM@ 1600 rpm" It's under the specs they give.

Packer

Thats standard/metice. Newton Metres and Kilowatts.

Take care,

Will

If my math skills are any good, this means that the new LBZ will have 630.24 ft lb tq at 3000 rpm:eek: That is more at 3000 rpm, then any pickup truck diesel has ever had at max torque:eek: 1400 rpm higher then the current ones.

And nearly 200 hp at 1600 rpm.:ro)

OCDune, can you find all of the threads that ask about this and reply with this info please? LOL.. kidding.. about time we got some solid numbers!

Yeah, all that would do is bring those threads active again

i am happy to see they have fixed up some of the screwups of the lly, this does prove the lly had some problems that had to be overcome, emmisions always comes at a price, this LBZ could be my next truck, looks good so far

If I order a 2006 now for delivery in NOV do I have to do anything special to insure I get the new package? (auto 6 speed & LBZ) The quotes I have still show the older LLY code. I have to order soon in order to take advantage of the GM overseas (military sales) program, but I can select a delivery time. I would be willing to be truckless for a while if delaying delivery insured the new package. Thanks for the help, my ability to research things is kinda limited at the moment.

It looks like the LBZ will be a 06.5 change according to what I hear.. similar to the LLY change over. The way it looks now is that all auto trucks built after Jan 1 will have the LBZ. The first half trucks will have the LLY.

SO that makes the LLY one of the shortest lived engines ever! -:t

I don't feel so good......

sure hope we don't become the "red headed step child" of the Duramax family...

So I guess Dodge will soon have 655 ft of torque :rolleyes:

I am stuck in a hard place. I want to order now.. Will have be in trouble if I get a LLY? Are the cooling problems fixed? Is there any gains other than HP and tourge to the new motor? I not hauling that large of a load that I need the higher HP and Tourge rating. Just want a truck that will last... I am ordering for Oct or Nov delivery.

http://www.trailerlife.com/cforum/index.cfm/fuseaction/thread/tid/15951036.cfm

More info I found.. I think I will stick with a LLY after reading the change on the with the computers. Let someone else try it out... LLY should have plenty of power for what I need.

With the LLY, tuning is already out for it. It might be quite a while before tuning becomes available for the new computer. An LLY with a mild tow tune will probably stomp a 360HP brochure rated engine.

Personally if I was going to get a new truck and leave it stock, I'd go for the 360 engine. But if I wanted to tune it up some, I'd go with an LB7 (used) or LLY.

sure hope we don't become the "red headed step child" of the Duramax family...

You nailed it..... my truck is going to be sold now, before that one comes around and ruins things.

.

Anyone a little worried about the all new computer system and turbo. They are only boosting power to off set the EPA Regs... Do you think I should wait for the 06.5? I am worried about owing a brand new eng on the market. All the new things seem to just improve the EPA emissions and thats it.

With the LLY, tuning is already out for it. It might be quite a while before tuning becomes available for the new computer. An LLY with a mild tow tune will probably stomp a 360HP brochure rated engine.

Personally if I was going to get a new truck and leave it stock, I'd go for the 360 engine. But if I wanted to tune it up some, I'd go with an LB7 (used) or LLY.

Damn. McRat had to show up and remind me that my LLY can kick the crap out of the LBZ. Hmmmmmmmm......

.

It would be nice if the exhaust brake would come on the pickups too.

Sounds like they are using up the end of the LLY production parts before they switch. The emissions requirements change on the calender year. So GM must meet the '06 requirement on everything they build on or after Jan.1,2006. This is why we have mid model year change overs. The LLY was released to comply with the 2005 emissions changes. Since they are continuing the LLY until the end of third quarter it looks like the normal change over time to me, not anything magic about it. The engine itself looks to be an updated LLY with very small changes. The turbo is the same basic unit that's on the LLY with upgrades to the exhaust wing area of the design. This is to handle the higher heat requirements GM placed on the turbo to Garrett. Is it bigger and better........... not what I've been told. The lower compression is to lower the NOx emissions plain and simple. The new computer system is because they are switching from a Delphi system to a Bosch system, is it new, yes but Bosch has been at it a long time so I wouldn't worry about it. Remember they build the rest of the fuel system so I think they will not have any trouble with it. It also gets rid of the EDU which Bosch has been building all along and puts everything into one unit.

I need help quick! I orderd a 2006 in may and delivery date is Aug. 2. I saw the invoice last Friday and it said LLY 310hp. It does have the 6sp. ally. Now I want a LBZ. PLease GM make up your mind!!!!!!! I am in trouble now as always.:badidea:

from what i was told threw a good source, changes were needed after the problems associated with the lly, with a stronger rod, piston, block, head and ect: this is not the same motor as the lly, and they were not only thinking of emmisions, it would be a no brainer to wait for the LBZ to make its apearrence, aftermarket tunes will be out much sooner than before, as many new tuners are out there, some are allready working on it, thank god the lly is done

Sounds all wonderful, more power more torque - but what about all the emissions crap, CAN connections between the sub units, ultra precise fuel injectors (we have already problems with the simple units and fuel quality...). I don't expect any better reliability (probably worst) either. More power tuning will be much more difficult because of the new interfaces....how about more heat because less emissions, more power...more overheating? I still think the LB7 was best, LBZ probably worst....

Sounds all wonderful, more power more torque - but what about all the emissions crap, CAN connections between the sub units, ultra precise fuel injectors (we have already problems with the simple units and fuel quality...). I don't expect any better reliability (probably worst) either. More power tuning will be much more difficult because of the new interfaces....how about more heat because less emissions, more power...more overheating? I still think the LB7 was best, LBZ probably worst....

malhalkita may be on to something. What if all the cooling mods were not to fix the LLY issues, but to try and control all "new" problems??? I may have one on the way. I talked to GM about it last week. They are checking. I hope I didn't make a big mistake.

So it was reported that redline is over 4k now correct? Anyone notice on the specs that fuel shut off is 3250rpms??

They just raised the redline so people would quit freaking out when grade braking took the rpm higher. It will still govern out when revved the same....

Either way, I say it's good for the industry. While I don't like having "outdated" stuff, I don't need the latest and greatest all the time either. I've got a great truck that I love, and it's working great for me. By the time the LBZs have been around for a year or so, I may have enough miles to trade anyway.

Look at how much diesel technology in pickups has progressed. My dad had one of the first '93 6.5 Turbos to roll out here in Montana. We thought it was awesome! Now we have 360 flywheel HP available from the factory...that's progress!

More Power, More Money probably also. I love my truck. It works just fine for me and when I save up the money for the Edge modules I will put them on for the additional power I am looking for.

You could bankrupt yourself trying to one-up the jones' so to speak. There will always be something newer and better out there if you wait a few days!!! ;) If you can afford to change every couple of years, more power to ya, I for one cannot. It took me 5 years to put the cash together for the one I got..

Yea, I would like to have the 6-speed, but I don't so I will live with what I got with a giant grin!!!

john

On Edit: BTW, I do not think that they are waiting for the LLy parts to be gone, it is my understanding that the LLY will continue to be made for use in the Hummer and the Vans. As I Understand It anyway.

from what i was told threw a good source, changes were needed after the problems associated with the lly, with a stronger rod, piston, block, head and ect: this is not the same motor as the lly, and they were not only thinking of emmisions, it would be a no brainer to wait for the LBZ to make its apearrence, aftermarket tunes will be out much sooner than before, as many new tuners are out there, some are allready working on it, thank god the lly is done

This LBZ isn't just an LLY update. You don't need a different engine code to "update"; you keep calling it LLY if it is indeed the same base engine. The current 06 LLY is obviously here to sweep the overheating issues under the rug and the 06.5 LBZ's job will be to roll up the rug and forever bury the LLY basturd stepchild that GM wishes they never fathered.

.

It will be really interesting to see where the mileage falls. Normally reducing compression reduces mileage in a well tuned engine.

GM's fiscal year ends 31 Dec (they use the calender year for fiscal year) so that means that trucks built on or after 1 Oct 05 should have the LBZ. Now we will wait and see how compares. I am just glad that I already have a price gaurenteed order in for a truck to be delivered in Feb, at least I dont have to worry about them raising the price on me.

The LBZ electonics are going to be alot tougher to crack for aftermarket tuners than the LLY.

How much are these 2006 going for.

Faster Glow Plug system? what is the wait to start light going to be a strobe light now? 3 seconds at 0 degrees is pretty damn fast to improve on.


Also, gonna be curious what they are going to do with the manual trans. I believe per ZF specs the S6-650 is only rated for 520 ft. lbs input torque. So even if they put a clutch that will handle the LBZ's power i think they are going to have to find a new manual trans too or have ZF redesign and change the max torque ratings. Lets hope they dont just scrap the manual trans and only offer an allison. Some people still like to grab gears themselves:ro) . I wonder if they'll just finish out the 2006 ZF-6 with the current LLY and then phase it out. I hope 2006 isnt the last year of the manual trans in a GM Diesel Pickup.

I had the same question about 6 speeds and yes it will have the detuned LLY not the LBZ. The only truck available with the LBZ will be auto 2500HD and 3500. 4500 still get LLY as well as vans with a 250hp LLY and Hummer H1 stays with LLY. I would say the days of a Chevy manual tranny are very short. I wouldn't be surprised if it wasn't offered after 06.

Not sure what this means, but it came straight from Gm`s web site

Maximum engine torque: 650 lb-ft

Maximum gearbox torque: 900 lb-ft

By the way, this is the new Allison 6 speed information.

Not sure what this means, but it came straight from Gm`s web site

Maximum engine torque: 650 lb-ft

Maximum gearbox torque: 900 lb-ft

By the way, this is the new Allison 6 speed information.

Does it mean that the transmission can handle 900 ft lb tq, but the engine is only giving it 650? I am sure they wouldn't have the engine produce the max the tranny can handle!:confused:

If it can indeed handle 900 ft lb tq, then there is a lot of room for upgraded power on the new tranny.:grd:

It will be really interesting to see where the mileage falls. Normally reducing compression reduces mileage in a well tuned engine.


Static compression yes, but not necessarily on forced induction engines (especially when boost is elevated...which "seems" to be the case). The old addage "time will tell" seems the only way to know for sure though in real world driving...

I had the same question about 6 speeds and yes it will have the detuned LLY not the LBZ. The only truck available with the LBZ will be auto 2500HD and 3500. 4500 still get LLY as well as vans with a 250hp LLY and Hummer H1 stays with LLY. I would say the days of a Chevy manual tranny are very short. I wouldn't be surprised if it wasn't offered after 06.

Yeah thats what im thinking, Maybe these ZF-6's will become valuble in the future):h , once GM doesnt sell a manual anymore. Already plan on keeping mine forever, but will look into a new duramax once the body is redesigned, maybe like an 08 or 09. This one will become my toy. Maybe youre gonna wish you kept the ole '03 6-er:D .

I would love to have a manual truck but I have seen too many of these "dual mass flywheels" fail because GM can't make a simple part that has been on vehicles since the turn of the century. This is the only reason I'm sticking with the Allison. I have seen two ZF Silverados go through 4 flywheels all together.

I would love to have a manual truck but I have seen too many of these "dual mass flywheels" fail because GM can't make a simple part that has been on vehicles since the turn of the century. This is the only reason I'm sticking with the Allison. I have seen two ZF Silverados go through 4 flywheels all together.

Agreed, but if you upgrade the clutch you have a combination that is hard to beat. GM will never be able to make one and that is why i bet after 06 you wont be able to get a manual on a GM Diesel Pickup.

Maybe if you don't have anything else with a manual trans you don't mind, but for me, I wouldn't want a manual transmission in a pickup in the first place. I guess I get enough of it in my trucks, etc., it's a treat to get in something you don't have to be clutching and shifting.

How much are these 2006 going for.

GM has announced a new program for 2006 called Total Value Promise. They are actually dropping their prices for about a third of their vehicles for 2006. All of their MSRPs are supposed to go closer to actual selling prices. It may be possible that Sticker will go down on our trucks.

OCDUNE

It might be different if I drove it everyday but I love driving the Duramax/ZF6 Silverado cab chassis when I get the chance. The only thing I wish they made different on the actual transmission is the ratio in second gear, it would be nice if it was a little lower because sometimes starting off on slight inclines can be pain because 1st is just too low and 2nd you wind up burning the clutch a little bit. Maybe thats just because it's a 8800 lb. dumptruck also. Anyway I just read on here that GM's fiscal year goes by the calander year but I think I heard on the news(maybe CNBC) that GM's fourth quarter starts sometime this month and ends sometime in november? I'm getting too excited about this truck I don't know if I can wait for this LBZ to be out a year before buying it lol.

that would be cool.
the employee discount deals only reflect the 2005 models .

Maximum gearbox torque of 900 ft-lb for the 6-speed Allison still doesn't mean much of anything. Remember, the current 5-speed Allison could handle 900 ft-lb of torque other than gear 5, which was limited to about 680 ft-lb. These are findings from both Banks and Edge.

I Work At A Chevy Dealer And Have Driven An Updated Lly With The Six Speed Allison And Exhaust Brake. Its A Whole Different Truck You Get Instant Tire Scorching Torque.

I Work At A Chevy Dealer And Have Driven An Updated Lly With The Six Speed Allison And Exhaust Brake. Its A Whole Different Truck You Get Instant Tire Scorching Torque.I thought the only thing upgraded about the 06 LLY is some of the cooling components? Isn't the exhaust brake only offered on the medium duty trucks to?

Yes, exhaust brakes are only offered on the mediums. And there is no reason for an '06 LLY with 6 speed Allison to perform any better than an '05 with the 5 speed Allison. Gears 1-5 are the same ratio on both trannies, basically they've just added a second overdrive.

Second... 900 lb-ft of torque through which gearbox? Remember that torque is multiplied by mechanical leverage (gearing). If you're lugging an LLY at 1600 rpm in 4th gear (direct), you've already got at the rear axle: 605 x 3.73 = 2257 lb-ft of torque, minus loss due to friction.

Third... Several of you are talking about the LLY going away. It is not going away. When the LLY came out, the LB7 went away and we had a detuned version of the new LLY also. That is not the case here.
The only vehicles getting the new LBZ will be diesel Silverados and Sierras with Allisons. All diesel Silverados and Sierras with manuals, all diesel Expresses and Savanas, all diesel Kodiak and Top Kick 4500 and 5500s, and Hummer H1s will still use the LLY, with its components that are unique from the new LBZ. That's a lot of applications that remain for the LLY, when you look at it that way. It is not going away.
This also begs the question, which engine will be used for the '07 Suburban and Yukon XL? My bet is the LLY will be there also. Remember, these new vehicles are due out next spring, not that far off either.

One more thing... I'd be very surprised to see GM get out of the manual transmission business in this class of vehicles. Manual transmissions are still relatively popular in cab-chassis Silverados and Sierras as well as Kodiaks and Top Kicks, although not quite as popular as autos. They will continue to offer a manual trans. in these trucks.

Tony

I for one am not waiting for the "upgraded motor" I am getting a proven motor compared to something that could have some growing pains.. Not to say the LBZ will not be great out of the box... It might be great, just like something that is proven.

I wonder if the exhaust brake system will work on our current lly engines>?>?:confused:

I too have driven the new dmax and it is not the same.It has much better performance.There are several engine differences.The fuel system is the new non FICM and could possibly be more agressive tune. The fuel rails look more like extruded then cast. The pressure sensor is different. The air intake,intake air heater,and boost sensor are now in the inlet plenum.The intercooler is totally different and has the stupid plastic tank on the passenger side like the fords that leak all the time.I'll disassemble the new releif valve this weekend and let evryone know the difference. Tim

So I guess Dodge will soon have 655 ft of torque :rolleyes:

Not until they develop an auto tranny that can take that kind of torque...................SWH...:rant:

Has anyone noticed the section of the press release that talks about the new allison six speed? The press release explains that the first five gears are the same as the old five speed, & that the sixth gear is a new "second overdrive", & will allow the truck to run at 1550 rpms at 60 mph, making it more economical.

The sixth gear will be a good thing for stock tires, but it might make the gearing too tall when you add 265 / 285's.

I doubt with 650ft/lbs (LBZ) of torque it will have any problems turning larger tires in 6th gear. 6th gear is not intended to be used when towing. Simply for high speed freeway use to get the motor back into its sweet spot (<2000RPM) where it will use less fuel.

I pulled this from the Aug 2003 GM Tech Link........

Quote

The interim 2004 Duramax 6600 diesel engine (RPO LLY) becomes available January 2004. Though similar to the current production Duramax 6600, this engine offers some significant differences. The GM Service Technical College (STC) will offer an updated Diesel Engine Performance course to reflect the changes. Refreshed and updated CBT, IDL, and Hands-on course components will be released successively beginning April 2004.

The key word is INTERIM. From the sounds of it the LLY was intended to be only a temporary design while they worked on something better.

hey, the "New" 6speed, I think if you have the right programmer you can switch yours also. Power all manufacturers can easily bump 20-30 HP etc on "improvements" (type new program):eek: Seems new when you buy it.

Still love my DMax

Before everbody claims this lbz unit to be the next best thing since sliced bread.....lets not forget what happened to dodge in 04.5! They had engine changes done to the common rail cummins in 04.5 and the outcome was not good. TDR ran a piece about how the 03 cr cummins was the engine to have in terms of reliability and bombability when it came to the cummins common rail design.........only time will tell!

The LBZ will not be the last engine redesign... The EPA has progressive stepped up emission requirements, ending at their goal by 2010 for diesel powered vehicles. I'm sure more changes are to come. GM should cut the chase game and just design an engine with the 2010 EPA standards in mind... :rolleyes: That will never happen. :mad:

I'm happy with my LLY... At least until I see impressive tuner numbers out of the new LBZs. By then, I will (may) be ready for a trade in. I'll let those impressed with the new numbers be the guinea pigs on the new engines. :D Then I can sit back and read the complaints that maybe forthcoming. As was said before, they are designing the engines to meet the emissions standards. Once they have mastered that, then they will get down to business in the horsepower/torque department.

This says that the LBZ will not be available until January of 2006.

What engine is in the 2006 Trucks that have been seen/photographed/driven by folks on this forum?

It looks different, sounds different, drives different, and has different components. (See Midwests post above.)

Jay

With the LB7's having a pruduction run for 31/2 years and the LLY's only having a production run of about 11/2(?) years (now that it seems that there is a new LBZ's to be on the market and the LLY's are to go into vehicals that are less likely to be "tuned up"), will the Tuner/Aftermarket guys quit researching for "More Power" and "Upgrades" for the`04.5 -`05 LLY's and skip to the Third Generation LBZ Duramax?

Will the LLY be the "Odd Man Out" for research down the road?

Oh well...time will tell.

jc

Like mentioned already the LLY isn't going any where. As far as we know so far the LBZ is only going to be put in the Allison equiped 2500HD and 3500. From what I understand the LLY will be offered in more vehicles then the LBZ. I have a feeling the detuned Dmax will eat up those 4L85's or what ever trans they are putting in the Hummer and vans because of where the torque is made in the rpm span compared to the 8.1. That might be a reason I would agree that aftermarket tuners might not want to try new tunes for the LLY since the transmission and maybe rear differential would be the weak points in the vehicles the LLY is staying in except the medium duties but I could be wrong.

I keep hearing that the LBZ is coming out to comply with future emissions. If that is the case how is that GM is going to continue production of the LLY and put it into other GM vehicles????? Aren't the LLY's day's numbered if that is the case. Something just doesn't make sense here.

Hello everyone,

Here is some more information on the all new LBZ Duramax, please click on the URL below and enjoy!

http://www.mrtruck.net/duramaxpress.htm

Pete

DS -
I believe the answer to your question is that we're talking about different versions of the LLY. LLY defines the engine and it's unique components, but not its programming or output.
Out of all the models that will still get the LLY, the only ones getting the "high-output" version are the Kodiak and Top Kick. Since they are medium duty trucks, they are held to different emissions standards than light duty trucks. The other models; namely manual trans. pickups, vans, and the H1; all get lower output versions of the LLY. These versions, I believe, operate with lower emissions output as well.

Tony

DS -
I believe the answer to your question is that we're talking about different versions of the LLY. LLY defines the engine and it's unique components, but not its programming or output.
Out of all the models that will still get the LLY, the only ones getting the "high-output" version are the Kodiak and Top Kick. Since they are medium duty trucks, they are held to different emissions standards than light duty trucks. The other models; namely manual trans. pickups, vans, and the H1; all get lower output versions of the LLY. These versions, I believe, operate with lower emissions output as well.

Tony

Good answer. :rolleyes:

.

The early 06 lly is very different from the past motor,see lly vs. lbz answered

Good answer. :rolleyes:

.

Furthermore, I was under the impression that the LLY allready met emission standards up to 2009.

I might be wrong.

I guess by being new to this site I never knew there was going to be such a performance difference between eary model 06's and third quarter 06's. I bought my 06 3 weeks ago and now wish I had known what I now know from this thread. I feel stupid for not researching more like I usually do but this was an impulse buy for me.

I guess by being new to this site I never knew there was going to be such a performance difference between eary model 06's and third quarter 06's. I bought my 06 3 weeks ago and now wish I had known what I now know from this thread. I feel stupid for not researching more like I usually do but this was an impulse buy for me.

Trust me your 06 will have plenty of power. And if you need more just buy the programmer.

You think the 360 horse engine will bump the price up any?

X2