Product Description
Restore factory performance on your early Duramax with these Industrial Injection PDM-LB7SH Remanufactured Stock Cylinder Heads. Precision remanufactured to OEM specs for the 2001–2004 GM/Chevy 6.6L LB7 Duramax, these heads are pressure-tested and resurfaced for a reliable, bolt-on solution when addressing overheating, cracked heads, or top-end refreshes.
Key Features
- Direct-fit for LB7 Duramax (2001–2004)
- OEM-equivalent flow and combustion chamber volumes
- Resurfaced decks and valve seats checked/set to spec
- Pressure and crack tested for long-term reliability
- Ready for installation with your choice of head gaskets and fasteners
Confirmed Fitment
- 2001, 2002, 2003, 2004 Chevy Silverado 2500HD/3500 – 6.6L LB7 Duramax
- 2001, 2002, 2003, 2004 GMC Sierra 2500HD/3500 – 6.6L LB7 Duramax
Recommended Add-Ons (Shop CPP Diesel)
- Head Gasket Set – LB7
- ARP Head Stud Kit – LB7
- LB7 Top-End Install Kits & Seals
- LB7 Water Pump
- More from Industrial Injection
- All Cylinder Heads
Installation Notes
- Always verify deck surface finish and follow proper torque sequence for head bolts/studs.
- Replace head gaskets and fasteners—do not reuse torque-to-yield bolts.
- Bleed cooling system thoroughly and verify injector cup sealing on LB7 applications.
FAQ
Q: Are these a direct replacement for my LB7?
A: Yes. These are remanufactured stock-equivalent heads designed for the 2001–2004 LB7 6.6L Duramax.
Q: Do they come assembled?
A: Heads are remanufactured to OEM standards. Valve components are inspected and set to spec; reuse/replace springs or seals per your build plan and service manual.
Q: Do I need ARP studs?
A: Not required, but strongly recommended for improved clamping force—see our ARP kits.
Q: Core charge?
A: Many reman heads require a refundable core. Check the product page details at checkout for current core policy.
Specifications
| Brand | Industrial Injection |
| Manufacturer Part # | PDM-LB7SH |
| Engine | GM 6.6L Duramax LB7 |
| Years | 2001–2004 |
| Configuration | Remanufactured Stock Replacement |
| Material | Cast Iron |
| Testing | Pressure & crack tested, resurfaced |
| UPC | PENDING |
| GTIN | PENDING |
| Prop 65 | WARNING: Cancer and Reproductive Harm |
Note: Photos may be representative. Always verify part number and vehicle fitment before ordering.
