What is the best Duramax engine?

What is the most reliable Duramax engine?

LBZ: 2006 – 2007

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. The only weakness is that the pistons are known to crack if you get over 600 horsepower output.

Why are LBZ the best Duramax?

The LBZ employed a thicker engine block casting, meatier connecting rods, and a higher pressure common-rail fuel system. This gave it more power and reliability versus any other Duramax to that point.

What is best year for GMC Duramax diesel?

The 2001 – 2004 model years are great on fuel, have the least emissions components, and shouldn’t give you any problems if the injectors were replaced under warranty. Avoid the 2007.5 – 2010 model year trucks if you are concerned with fuel economy.

Which is better LBZ or lly?

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.

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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.

How do I know if I have a LBZ or lly?

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.

Is the 6.6 Duramax a good engine?

The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.

How many MPG does a 6.6 Duramax get?

This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway.

Which is better Duramax or powerstroke?

Both the Ram Cummins and the Ford Power Stroke can pull over that amount, but the Duramax lags with a total towing capacity of 23,300. The Power Stroke wins here again with a total towing amount of 34,000 pounds versus Ram’s 31,210 pounds.