Helpful tips

How do you tell if a 2006 Duramax is an LLY or LBZ?

How do you tell if a 2006 Duramax is an LLY or LBZ?

Look at the 8th digit of the VIN number, a “2” is an LLY an a “D” is an LBZ. Also, the LBZ badges are usually blue, LLY is usually red.

What is better LLY or LBZ?

there are no difference from the lly to lbz engine wise and transmission wise its exactly the same, the ecm has the tune of a 05 lly with 310hp and not the lbz which is 350hp throw a tuner on there and its not gonna matter.

How can you tell the difference between LLY and LBZ?

The simplest way to tell the lly or lbz is the dished valve cover. You should be able to see the valve cover is dished around the injector. Custom 12x12x2 Oil cooler and transmission cooler, Custom Cold side IC pipe, Enabled 6th gear.

Is there a 2006 LLY Duramax?

Changes to the LLY Duramax for the 2006 Model Year New cylinder block casting and machining procedure designed for higher strength. Main bearing material updated for increased longevity and bottom end reliability. Compression ratio lowered from 17.5 to 16.8:1.

Is LLY better than LB7?

Premium Member. I’ve had both. The LB7’s got better mpg, but if you work them hard they will eat injectors. The LLY’s actually run a little better stock, but get a little worse mpg and will most likely overheat if worked hard.

Is the LLY Duramax a good engine?

The 2nd generation Duramax is known as the LLY. Similar to the LB7, the LLY Duramax is reliable, powerful, and lacks most of the emissions found on modern day diesel trucks like the L5P. LLY Duramax trucks don’t suffer from the same injector failure problems that LB7 trucks frequently had.

How many miles will a LBZ Duramax last?

With a strengthened block and good internals, the LBZ is easily capable of surpassing the 300,000 mile mark with sufficient maintenance and care. Throughout the course of ownership you’ll probably have to replace a water pump or two and upgrade your transmission lines.

How much boost can a stock LLY Duramax handle?

The drive pressure for the turbo exceeds 80 PSI at 40 PSI of boost so you are creating more back pressure than boost and therefore robbing a lot of power from the engine. The max boost you can make with a stock LLY hairdryer and still be efficent/useful is around 32-34 PSI.

Is the 06 LLY still in production GMC Duramax?

2=LLY used 06 but now count to the 10th digit and if it is a 6 then you have the 06 LLY. 6=LMM used 07.5 and is still in production.. HP ratings. these #’s are off the top of my head so don’t hold me to it. the New Allison emblem came only on the LBZ Duramax.

What is the engine code on a 2006 LLY?

The eight digit is the engine code, you have a lbz. the tenth digit is the year code, 6 is for 2006, will be the same on the lly and the lbz. Ok cool! thanks. i was confused, but that makes sense now.

What’s the horsepower and torqe rating on a Duramax Allison?

Whats the horsepower and torqe rating? Also the new Duramax Allison emblem. That came out in 06 didnt it? Does the 06 LLY have the old emblem or the new one like the LBZ? Also on an 06. The emission label is also a way to tell if its LLY or LBZ aint it? The LBZ shows 360hp, right?