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The intake & exhaust manifold must be removed. Then the head must must be removed. A very difficult repair and not a repair a novice should attempt.

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Q: How do you change head gaskets on a duramax lly?
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Related questions

What kind of engine is the Duramax?

The Duramax is a General Motors diesel v8 engine. There are five types of Duramax engines: LB7, LLY, 2006 LLY, LBZ, and LMM. The 8th number on the VIN number will identify the engine type.


How much horsepower does a duramax diesel put out?

(Lb7) 300 (LLY) 310... 320 on LLY's put in trucks in 2006-2007 (LBZ) 360 (LMM) 365


How much horse power does the duramax have?

(Lb7)300hp (LLY)310hp and 320 hp on LLY models put in 2006-2007 trucks (LBZ)360hp (LMM)365hp


How do you tell which engine you have in your 2006 duramax?

If the 8th digit in the vin number is a 2 then it is an LLY, if the 8th digit is a D then you have an LBZ


What is the horsepower of a LLY 6.6 Duramax?

If the truck is earlier than 2006, than 310hp. If it is 2006-2007, than 320hp.


What is the Horsepower of a 2004 Chevy duramax engine?

If it was an earlier 2004 truck with the Lb7 duramax (8th digit of VIN would be 1) then it has 300hp. If it was a later 2004 truck with the LLY duramax (8th digit of VIN would be 2) then it has 310hp.


How much torque does the 6.6 duramax have?

LB7=520 LLY=605 LBZ=650 LMM=660 all are in lb-ft


How much horsepower does a 04 Duramax Diesel have?

depends on which engine you have. 2004 was the transition year. look at the eighth digit in your vin # if its a "1" you have a LB7, if its a "2" you have a LLY. LB7 300hp 520ft tq LLY 310hp 605ft tq


How manydifferent engines does duramax have?

Lb7=01-04.5 lly=04.5-05 lbz=06-07 lmm=08-10 lml=11-??


Can you install a 2006 duramax engine in a 2002 duramax?

It's doable... not sure how feasible it would be. You'll need the complete ECM and EGR from the 06 engine.... the 2002 would have the pre-ACERT LB7 engine, whereas the 2006 would be either the 6.6 LLY or 6.6 LBZ (depending on when in 2006).


What are the pros and cons to installing an EGR blocker plate to a lly duramax?

Pros: Healthier engine, cleaner intake, increased performance, increased mileage. Cons: It's illegal. and may void any warranties


What is lly?

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