Guidelines

How do I know if I have LBZ or lly?

How do I know if I have 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.

How do I know if I have a LML Duramax?

The Duramax engine has evolved from the original LB7 series to include the LLY, LBZ, LMM, LML/LGH, and now the L5P series. The simplest way to verify which series Duramax you have is interpreting the VIN# of the truck. With some exceptions, the 8th digit is the engine ID and it will either be a 1, 2, D, 6, 8, L, or Y.

What year is LBZ Duramax?

2006-2007
LBZ Duramax Specifications

Manufactured Years: 2006-2007
Displacement: 6.6 Liters or 403 Cubic Inches
Engine Weight: 835 Lbs
Bore: 4.055″ or 103 mm
Stroke: 3.897″ or 99 mm

Whats the difference between LMM and LML?

The LMM regens by injecting fuel into the engine during the exhaust stroke – the LML design uses the 9th injector to inject the regen fuel into the exhaust, downstream from the turbo, which eliminates any possibility of regen ‘fuel’ ending up in the engine oil.

What years are LLY Duramax?

LLY Duramax Specifications Chart

Manufactured Years: 2004-2006
Vin Identification: (8th Digit) 2
Displacement: 6.6 Liters or 403 Cubic Inches
Engine Weight: 835 Lbs
Bore: 4.055″ or 103 mm

What is the difference between LBZ and LMM?

Over all there is little difference between the the LMM and LBZ. LMM has additional emission plus an air intake valve but other than that not a big difference.

What year Duramax is LML?

2011 – 2016
GM Duramax Turbo Diesel Engines

Engine RPO Code Year In Production Fuel
LLY/LBZ 2006 – 2007 Diesel
LMM 2007 – 2010 Diesel
LGH 2010 – 2017 Diesel
LML 2011 – 2016 Diesel

Is a 2007 Duramax a LBZ?

The 6.6-liter LBZ Duramax V8 diesel engine was introduced midway through the 2006 model year, when it replaced the 6.6 liter LLY Duramax variant. As such, it powered Chevrolet Silverado Heavy-Duty and GMC Sierra Heavy-Duty pickup trucks through 2007, making up to 360 horsepower and 650 pound-feet of torque.

Is a 2006 Duramax a LBZ or lly?

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.

Which is better LBZ or LMM?

LBZ is a little more roomy under the hood, the lmm is advertized at 660 torque at 1800 rpms vs the lbz at 650 BUT at 1600 rpms. The lbz will pull the hardest in stock form. Put an exhaust on the lbz and get rid of the dpf on the lmm and youl have pretty much identical performance.

What year is LMM Duramax?

2007 – 2010

Is my 2006 Duramax LLY or LBZ?

Its pretty simple from what I understand. If you have a 2006 LLY with a 6 speed trans (easily identifiable by the tap shifter), then its mechanically identical to the LBZ. If its a 5 speed trans, its the old style LLY.

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