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LB7 Duramax New Cylinder Head Complete with Valve Train – DK Engine DK-GMLB7-CHL (One Head)
Your 2001–2004 GM 6.6L Duramax LB7 is a proven workhorse, but the factory aluminum cylinder heads have a well-known weak point: they are prone to cracking around the injector cups, warping, and coolant leaks that lead to lost compression and expensive downtime.
This brand-new LB7 cylinder head from DK Engine Parts solves those problems at the source. It is built from a fresh casting and comes fully loaded with a complete valve train — giving you a strong, reliable foundation without the headaches of the original design.
This listing is for ONE complete cylinder head. The LB7 V8 engine requires two heads. Order two if you are replacing both sides or doing a full engine rebuild.
Key Features & Benefits
- New Casting (Not Remanufactured) — Fresh start that eliminates the cracking and warping issues common to factory LB7 aluminum heads.
- Complete Valve Train Included — Ready-to-install assembly with new valves, valve springs, retainers, keepers, seals, and seats. No extra parts or machine shop work needed.
- Black Nitride Coated Valves — Superior wear resistance and durability compared to standard valves for longer service life.
- Saves Time & Labor — Pre-assembled and ready to bolt on. Ideal for professional shops or DIY builders.
- Direct Replacement Fitment — Matches original specifications for proper compression, cooling, and valvetrain geometry.
Vehicle Fitment 2001–2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7 2001–2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7
Verify before ordering:
- Engine code: VIN “1” in the 8th position
- Head casting numbers should read 687-3 or 587-2
Specifications
- Part Number: DK-GMLB7-CHL
- Condition: Brand New
- Includes: One complete cylinder head with full valve train assembly
- Warranty: 1-Year Limited Warranty
Whether you’re fixing injector cup leaks, doing a head gasket job, or rebuilding your LB7, this new loaded cylinder head gives you a dependable, long-lasting solution that outperforms the original factory design in durability and ease of installation.
LB7 Duramax New Cylinder Head Complete with Valve Train – DK Engine DK-GMLB7-CHL (One Head)
Your 2001–2004 GM 6.6L Duramax LB7 is a proven workhorse, but the factory aluminum cylinder heads have a well-known weak point: they are prone to cracking around the injector cups, warping, and coolant leaks that lead to lost compression and expensive downtime.
This brand-new LB7 cylinder head from DK Engine Parts solves those problems at the source. It is built from a fresh casting and comes fully loaded with a complete valve train — giving you a strong, reliable foundation without the headaches of the original design.
This listing is for ONE complete cylinder head. The LB7 V8 engine requires two heads. Order two if you are replacing both sides or doing a full engine rebuild.
Key Features & Benefits
New Casting (Not Remanufactured) — Fresh start that eliminates the cracking and warping issues common to factory LB7 aluminum heads.
Complete Valve Train Included — Ready-to-install assembly with new valves, valve springs, retainers, keepers, seals, and seats. No extra parts or machine shop work needed.
Black Nitride Coat[...]
LB7 Duramax New Cylinder Head Complete with Valve Train – DK Engine DK-GMLB7-CHL (One Head)
Your 2001–2004 GM 6.6L Duramax LB7 is a proven workhorse, but the factory aluminum cylinder heads have a well-known weak point: they are prone to cracking around the injector cups, warping, and coolant leaks that lead to lost compression and expensive downtime.
This brand-new LB7 cylinder head from DK Engine Parts solves those problems at the source. It is built from a fresh casting and comes fully loaded with a complete valve train — giving you a strong, reliable foundation without the headaches of the original design.
This listing is for ONE complete cylinder head. The LB7 V8 engine requires two heads. Order two if you are replacing both sides or doing a full engine rebuild.
Key Features & Benefits
- New Casting (Not Remanufactured) — Fresh start that eliminates the cracking and warping issues common to factory LB7 aluminum heads.
- Complete Valve Train Included — Ready-to-install assembly with new valves, valve springs, retainers, keepers, seals, and seats. No extra parts or machine shop work needed.
- Black Nitride Coated Valves — Superior wear resistance and durability compared to standard valves for longer service life.
- Saves Time & Labor — Pre-assembled and ready to bolt on. Ideal for professional shops or DIY builders.
- Direct Replacement Fitment — Matches original specifications for proper compression, cooling, and valvetrain geometry.
Vehicle Fitment 2001–2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7 2001–2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7
Verify before ordering:
- Engine code: VIN “1” in the 8th position
- Head casting numbers should read 687-3 or 587-2
Specifications
- Part Number: DK-GMLB7-CHL
- Condition: Brand New
- Includes: One complete cylinder head with full valve train assembly
- Warranty: 1-Year Limited Warranty
Whether you’re fixing injector cup leaks, doing a head gasket job, or rebuilding your LB7, this new loaded cylinder head gives you a dependable, long-lasting solution that outperforms the original factory design in durability and ease of installation.