Product Description
Industrial Injection PDM-LLYRLB Race Long Block — Fits 2004.5–2005 6.6L LLY Duramax
Build the LLY you can lean on at the track. The Industrial Injection Race Long Block is engineered for competition use and extreme reliability, using premium internals, precision machining, and proven hardware to handle serious power goals.
Key Features
- Balanced & blueprinted rotating assembly
- Sim-tested short block
- Coated, chamfered, de-lipped pistons
- Balanced & keyed OEM Duramax crank (billet crank optional)
- 14mm Gorilla girdle with ARP main studs
- Carrillo billet connecting rods
- Keyed performance billet alternate-firing camshaft
- ATI Super Damper & SunCoast billet flexplate
- New oil pump, water pump, oil cooler, and pickup tube
- Reconditioned, CNC race-ported heads with premium seats/guides, new unshrouded valves, multi-angle valve job
- Duramax OEM head gaskets & ARP 625 head studs
Note: Valve covers, rocker assembly, pushrods, additional assembly gaskets, fuel system, and turbo components are not included (crate long block). Use Joe Gibbs Break-In Oil for the first 300–500 miles.
Fitment
- 2004.5–2005 Chevrolet Silverado 2500HD/3500 6.6L LLY Duramax
- 2004.5–2005 GMC Sierra 2500HD/3500 6.6L LLY Duramax
Recommended Pairing (On CPP Diesel)
- Industrial Injection Race Cylinder Heads — LLY
- Industrial Injection Reman Stock Injection Pump — LLY
- Industrial Injection Race Short Block — LLY
- Industrial Injection Premium Stock Long Block — LLY
- Industrial Injection Premium Stock Plus Short Block — LLY
Installation Notes
- Professional installation and tuning recommended for racing applications.
- Break-in oil required (Joe Gibbs) for 300–500 miles before switching to your performance oil.
Warranty
1-Year limited warranty by Industrial Injection (competition use components/terms apply).
Specification Chart
| Manufacturer | Industrial Injection |
|---|---|
| Part Number | PDM-LLYRLB |
| Engine Code | LLY 6.6L Duramax (2004.5–2005) |
| Configuration | Race Long Block (crate engine) |
| Core Charge | Yes (core required) |
| UPC | 840256915631 |
| GTIN | 0840256915631 |
| Prop 65 | WARNING: This product can expose you to chemicals including lead and engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
FAQ
Q: What power level is this long block designed for?
A: It’s built for competition use, with billet and upgraded internals to support high horsepower builds when paired with appropriate fuel, air, and tuning.
Q: Does it include valve covers, rocker assemblies, pushrods, fuel system, or turbo parts?
A: No. Those components are not included; see the “Recommended Pairing” section for parts available on CPP Diesel.
Q: Is tuning required?
A: Yes. Proper calibration is required for racing applications to ensure performance and reliability.
Q: What about break-in?
A: Use Joe Gibbs Break-In Oil for 300–500 miles before switching to your preferred oil.
