Product Description
Industrial Injection PDM-LMLRH GM Race Cylinder Heads – 2011–2016 LML 6.6L Duramax
Unlock serious top-end performance and reliability on your LML with Industrial Injection PDM-LMLRH GM Race Heads. Engineered for high-boost, high-heat abuse, these race-prepped heads deliver improved airflow, durability, and sealing for your 2011–2016 6.6L Duramax build.
Key Features
- Race-prepped casting with enhanced port work for improved airflow
- Upgraded valve seats and guides for high-heat durability
- Precision-machined decks for superior gasket sealing
- Assembled and pressure-tested for reliability
- Direct-fit for LML 6.6L Duramax (2011–2016)
Fitment
GM/Chevy 2500HD & 3500HD: 2011, 2012, 2013, 2014, 2015, 2016 – LML 6.6L Duramax.
Browse compatible vehicles and parts: LML 2011–2016 Category | Industrial Injection | Cylinder Heads
Recommended Supporting Parts
- ARP Head Studs – maximize clamping force and head gasket life
- MLS Head Gaskets – pair with studs for optimal sealing
- Cooling System Upgrades – manage heat under sustained load
- Performance Injectors – feed the added airflow
- Turbocharger Upgrades – realize full head flow potential
What’s In The Box
- (1) Industrial Injection PDM-LMLRH Race Cylinder Head (assembled)
- Pre-installed valves, springs, retainers (as supplied by manufacturer)
Installation Notes
- Professional installation and proper torque sequence required
- Highly recommended to use ARP head studs and new MLS gaskets
- Verify injector cup and valve lash per build specs
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-LMLRH |
| Engine | GM LML 6.6L Duramax (2011–2016) |
| Material | Cast Aluminum (race-prepped) |
| UPC | Enter your UPC here |
| GTIN | Enter your GTIN here |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQs
Do I need head studs with these race heads?
Yes. For boosted applications, we strongly recommend ARP head studs to maintain clamping force and prevent gasket failure.
Will these fit my 2015 Silverado 2500HD LML?
Yes. These heads are designed for all 2011–2016 LML 6.6L Duramax applications.
Are these ready to install?
They arrive assembled and pressure-tested. Always verify clearances, clean deck surfaces, and follow manufacturer torque specs.
What gaskets should I use?
Pair with quality MLS head gaskets and new hardware for best sealing.
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