INDUSTRIAL INJECTION PDM-LB7RH GM RACE HEADS — FITS 2001–2004 6.6L DURAMAX LB7

Unleash airflow and durability on your LB7 with the Industrial Injection PDM-LB7RH Race Cylinder Heads. Engineered for 2001–2004 GM/Chevy/GMC 6.6L Duramax LB7 trucks, these performance heads are built to handle higher boost and elevated EGTs common in towing, street/strip, and competition builds.

Key Features

• Direct-fit for 2001–2004 Duramax LB7 platforms
• Performance-oriented port work and valvetrain setup to support higher flow*
• Upgraded components for enhanced reliability under heavy load*
• Compatible with popular studs, gaskets, and valve train upgrades
• Designed to pair with bigger injectors/turbos for maximum gains

*Exact machining/specification details may vary by batch; verify current build sheet before installation.

Fitment

• 2001–2004 Chevrolet Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
• Will not fit LLY/LBZ/LMM/LML/L5P

Recommended Parts (Pair With)

• ARP Head Stud Kit
• Duramax Head Gasket Set (LB7)
• Valve Springs & Pushrods
• Performance Injectors (LB7)
• Turbo Upgrades
• Fresh Fluids, Filters & Seals

What’s Included

• (1) Set of Industrial Injection PDM-LB7RH Race Cylinder Heads
• Pre-assembled valvetrain (where applicable)*

*Assembly details vary by configuration; check current contents.

FAQs

Q: Do these require custom tuning?
A: Heads alone don’t require tuning, but if you add larger injectors/turbo, a proper tune is recommended for drivability and power.

Q: Do I need head studs?
A: For increased boost or towing/competition use, we strongly recommend ARP studs over factory bolts.

Q: Core charge?
A: Many performance heads involve a core program. Please review our Core Policy or contact us for current details.

Q: Gaskets included?
A: Gaskets are typically sold separately. See LB7 head gasket sets.

Specifications

Need Help?

Questions about fitment or build planning? Contact our tech team—we’re happy to help dial in your LB7 combo.