Product Description
S&S Diesel LB7-30SAC-SET — 30% Over Injector Set (NEW) for 2001–2004 Duramax 6.6L LB7
Turn up clean power and reliability. This brand-new S&S Diesel Motorsport 30% over LB7 injector set uses modern SAC-type nozzles, precision-balanced as a matched set to deliver smooth idle, crisp throttle response, and consistent fueling across all eight cylinders.
- Brand-new (not reman) common-rail injectors with SAC-type nozzles
- 30% over stock flow for added horsepower potential with proper tuning and airflow
- Matched & balanced as a complete set for smooth operation
- Direct-fit for 2001–2004 GM Duramax 6.6L LB7
Fitment
2001, 2002, 2003, 2004 Chevrolet Silverado/GMC Sierra 2500HD/3500HD with 6.6L Duramax LB7.
What’s Included
- (8) New S&S Diesel 30% Over LB7 Injectors (LB7-30SAC-SET)
- Pre-calibrated, set-balanced injectors for drop-in installation
Recommended Supporting Parts
- LB7 Injector Install Kit — seals, gaskets, and hardware for a complete job.
- LB7 High-Pressure Injector Lines — refresh aging lines while you’re in there.
- LB7 Fuel Return Line Kit — eliminate leaks and ensure proper return flow.
- GM Duramax Injectors/Nozzles Category — browse related injector components.
- GM Duramax Parts (All Generations) — shop complementary upgrades.
Installation Notes
- Professional installation recommended; injector coding and tuning may be required for best results with 30% over nozzles.
- Inspect/replace injector cups and fuel filter head components during install for long-term reliability.
FAQ
Are these injectors truly brand-new?Yes. LB7-30SAC-SET is a new set (not remanufactured), using modern SAC-type nozzles for durability and consistent flow.
Do I need tuning with 30% over injectors?To fully realize the added flow and maintain optimal drivability, custom calibration is recommended, along with adequate airflow (turbo/intercooler) and fuel supply.
Will these fit my 2004.5 LLY?No. This set is specific to the 2001–2004 LB7. LLY owners should shop LLY-specific injectors.
Should I replace injector lines and seals during the job?Yes. Refreshing high-pressure lines, return lines, and gaskets helps prevent leaks and balance issues after install.
