Description
GM Duramax – LLY 2004.5-2005 – New Cylinder Heads w/ ARP Studs & Head Gasket Set
This product listing contains the following part(s) for the GM Duramax LLY applications:
- (2) Brand New Cylinder Heads with All New Valve Train Components
- All New Valves, Springs, Seats, Seals, Retainers, and Keepers
- All of our heads are brand new with complete valve train including black nitride coated valves.
- Limited 1-Year Warranty
- (2) DK Grade ‘C’ Thickness Head Gaskets
- (1) DK Head Set (Upper Gasket Set)
- (1) ARP Head Stud Set
Special Notes about the Product(s):
- Please verify your engine model before purchasing. If you do not know which engine you have, please give us a call, at 1-855-474-9400, before ordering!
This product listing is for the GM Duramax LLY in the following application(s):
- GM Duramax 6.6L – 2004.5-2005 – LLY VIN Code ‘2’
- The ‘LLY’ engine is the first year to use connector ‘keys’ on the injector (the circled portion).
DK Engine Parts offers a variety of engine parts and kits for most GM Duramax applications and engine models. Please take a look at what we offer on our website and feel free to call us anytime with questions regarding items listed on our website. Also note that we offer more parts then what is currently listed on our website. If you do not see what you are looking for, please do not hesitate to call us at 1-855-474-9400. We have knowledgeable salesmen on standby to assist you with any questions you might have.
Rudy Dominguez (verified owner) –
Do not hesitate to purchase. Purchased January 2025. Was exactly what I was looking for after finding out I had a blown head gasket on my 2005 2500HD. Heads fit perfectly and the gasket kit made the job go smoother than expected. Keep in mind you’ll need to transfer exhaust studs and other studs from another head to this new one.