What is the difference between the LLY and LBZ?

The ’06 LLY is much quieter than the ’05. The ’06 LLY and LBZ have the same turbo (ask McRat, he put one on his ’05 LLY). It has the reduced compression, meaning that it has the LBZ pistons. If the LBZ piston has an increased wristpin diameter, then it stands to reason that the ’06 LLY also has the LBZ rods.

Is the LBZ better than the lly?

Only the LLY with a six speed Allison would be comparable to a LBZ correct only difference is LLY has been detuned compared to the LBZ’s higher horsepower tuning I also have research this to death and this is what I came up with.

Is the 2005 LLY Duramax a good engine?

While previous injector issues were laid to rest with the LLY, the common-rail injection system still had a few minor quirks, along with the injection system still being void of a factory lift pump. But even though it tends to be viewed as the least desirable in the Duramax lineage, the LLY was a very solid engine.

Is the 2006 LLY the same as the LBZ?

The 2006 LLY (engine code “2”) debuted in the beginning of 2006 and ended production with the start of the 2006 calendar year. Mechanically it is identical to the LBZ and is mated to the new 6 speed Allison transmission however it retained the LLY designation.

Can you put a LBZ in a lly truck?

—Yes, you can swap in an LBZ instrument cluster and have functional tap-shift and “M” mode display. The LBZ instrument cluster is plug and play into an 03-05 truck, however keep in mind your odometer mileage will NOT transfer over.

Is LBZ the best Duramax?

Still lacking emissions control devices, the LBZ is also one of the most popular Duramax engines. It has the best potential for performance and horsepower additions through various Duramax parts mods and tuning. Built stronger and more durable than previous engines, the LBZ is reliable and powerful.

Is the Duramax LLY a good motor?

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.

Is 2005 a good year for Duramax?

2004.5-2005.5 2500 & 3500 Instead, this generation Duramax is known for overheating issues, namely when towing heavy. Best Year(s): Any year — just be prepared for the possibility of replacing the head gaskets and facing overheating issues if you plan to tow heavy.

Is a 2006 Duramax a LBZ or lly?

Today, the Duramax makes nearly 400 horsepower and over 750 lb-ft of torque while reducing emissions considerably over previous generations. The chart below follows the progression of the Duramax diesel, from the first LB7 to the more recent LML. The LBZ was introduced in 2006 and eventually replaced the LLY by 2007.

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.