Product Description
Step up your Duramax build. The Industrial Injection PDM-LBZ/LMMRH Race Cylinder Heads are engineered for high-boost, high-horsepower LBZ/LMM 6.6L platforms. Built from premium OEM castings and precision-machined, these heads are designed to improve airflow, sealing, and durability under severe use.
Key Features
- Performance-built cylinder heads for 2006–2010 GM 6.6L Duramax LBZ/LMM
- Precision machining, pressure-tested, and assembled by experts
- Improved airflow characteristics to support bigger turbo and fueling
- Enhanced seat/guide work for longevity in high-heat, high-boost conditions
- Compatible with factory architecture and performance valvetrain upgrades
Fitment
- 2006–2007 GM/Chevy Silverado & GMC Sierra 2500/3500 HD — 6.6L Duramax LBZ
- 2007.5–2010 GM/Chevy Silverado & GMC Sierra 2500/3500 HD — 6.6L Duramax LMM
Recommended Supporting Parts
- ARP Head Studs for Duramax — lock down combustion sealing under high boost
- MLS Head Gaskets (LBZ/LMM) — pair with studs for best results
- Performance Valvetrain Components — springs, retainers, seals
- Complete Install Gasket Kit — intake/exhaust, valve cover, seals
- Turbo Upgrades for LBZ/LMM — take advantage of added flow
- Fuel System Upgrades — injectors, pump, lines to match power goals
What’s Included
- (1) Pair of assembled performance cylinder heads (left & right)
- Pre-installed valve seats/guides (assembly details vary by batch)
Installation Notes
- Professional installation and machine shop measurements recommended
- Always verify piston-to-valve and retorque per fastener manufacturer specs
- Use fresh MLS gaskets and quality head studs for best sealing
Emissions / Intended Use
For off-road competition/race use where permitted. Buyer is responsible for compliance with local, state, and federal laws.
Specifications
| Brand | Industrial Injection |
|---|---|
| Manufacturer Part # | PDM-LBZ/LMMRH |
| Engine | GM 6.6L Duramax LBZ/LMM (2006–2010) |
| Configuration | Assembled race cylinder heads (pair) |
| Material | OEM castings, precision-machined |
| UPC | TBD – contact us to confirm |
| GTIN | TBD – contact us to confirm |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQs
Q: Do I need head studs?
A: Yes. We strongly recommend ARP studs with MLS gaskets for reliable sealing at elevated boost.
Q: Will these work with my stock turbo?
A: Yes, but they really shine with a performance turbo and proper tuning.
Q: Are cores required?
A: Core policy may apply; check the product options or contact us for current details.
Q: Do they come with valves and springs?
A: Assemblies typically include seats/guides and are set up for performance use. For specific valve/spring specs, pair with our valvetrain upgrades.
