Product Description
Overview
Bring your LB7 back to reliable, leak-free power with Industrial Injection PDM-LB7SH-TL Remanufactured Stock Cylinder Heads with Torque Lock Cups. These heads are a premium, ready-to-bolt-on factory replacement engineered for durability and long-term sealing on the 2001–2004 GM 6.6L LB7 Duramax.
Fitment
- 2001–2004 GM 6.6L LB7 Duramax
- Chevrolet Silverado 2500HD / 3500 (LB7)
- GMC Sierra 2500HD / 3500 (LB7)
Why It’s Better
- Torque Lock injector cups to help prevent coolant/fuel cross-contamination and cup movement
- Diamond-honed guides and multi-angle valve job for consistent sealing
- High-strength, heat-treated iron-based valve guides for superior wear resistance
- Premium, non-magnetic nickel-based valve seat inserts
- New valve springs; complete and ready to bolt on
What’s Included
- Remanufactured LB7 cylinder heads (pair), assembled
- Installed Torque Lock injector cups
- New valve springs, guides, and seats
Core Policy
This item carries a refundable core charge. Send in good, reusable LB7 heads (no cracks/warping/excessive wear) to receive full credit.
Recommended Installation Parts (links to our site)
- MLS head gaskets (LB7)
- Head studs or head bolts (ARP & OE)
- LB7 injector install kit / seals
- Coolant & cooling system service items
- Valve cover & intake/exhaust manifold gaskets
- More Industrial Injection LB7 components
FAQs
Q: Do these heads fix the LB7 injector cup issues?
A: They include Torque Lock cups designed to reduce cup movement and sealing problems compared to stock-style cups.
Q: Are these a direct bolt-on?
A: Yes. They arrive assembled with new components and are intended as a direct replacement for LB7 applications.
Q: Do I need studs?
A: Not required, but many installers choose head studs for added clamping, especially on tuned/towed applications.
Q: Is machining required?
A: No machining is typically required. Always verify deck flatness/block condition and follow torque procedures.
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-LB7SH-TL |
| Application | 2001–2004 GM 6.6L LB7 Duramax |
| Configuration | Remanufactured cylinder heads (pair), with Torque Lock injector cups |
| Valve Train | New valve springs; diamond-honed guides; multi-angle valve job |
| UPC | 840256915501 |
| GTIN | 00840256915501 |
| Prop 65 | WARNING: Cancer and Reproductive Harm – P65Warnings.ca.gov |
| Core Charge | Yes (refundable upon acceptable core return) |
