Product Description
S&S Diesel LB7-350SAC-SET 350% Over Injector Set (New) — 2001–2004 GM Duramax 6.6L LB7
Maximum flow for built LB7 combos. This S&S Diesel Motorsport set features brand-new SAC-style nozzles engineered and matched by S&S for consistency and durability. These are not VCO nozzles—SAC geometry and S&S processes deliver reliable high-flow performance for serious power builds.
- Set of 8 brand-new S&S injectors (no core wear items).
- SAC-style nozzles, precision honed and flow-matched to tight tolerances.
- Built for high fuel demand (350% over stock) to support large-air & competition setups.
- Each set matched for balance and repeatability.
Fitment
2001–2004 GM Duramax 6.6L LB7 (Chevy Silverado/GMC Sierra 2500/3500). Sizing at 350% over is intended for race/competition use with appropriate air system, fuel system, and calibration.
What’s Included
- (8) S&S 350% Over LB7 Injectors — New
- Matched set documentation/spec as provided by S&S
Recommended Supporting Parts
- Shop All S&S Diesel at CPP
- 2001–2004 Duramax Fuel System Upgrades
- 2001–2004 Duramax Injectors & Lines
- LB7 Lift Pumps
- LB7 Filtration & Water Separators
Installation & Notes
- Professional installation and custom tuning strongly recommended for 350% over sizing.
- Verify emissions regulations and intended use in your jurisdiction before purchase/installation.
FAQ
Are these injectors new or reman?They are brand-new S&S injectors (not reman), sold here as a matched set of 8.
Do I need tuning for 350% over injectors?Yes. This size requires appropriate turbo/air, fuel supply, and custom calibration for proper drivability and performance.
Will these fit all LB7 trucks from 2001–2004?Yes—fitment is for 2001–2004 GM Duramax 6.6L LB7 (Silverado/Sierra 2500/3500).
Are SAC nozzles different from the factory LB7 VCO design?Yes. SAC geometry and S&S manufacturing processes are used for durability and consistent high-flow performance compared to the stock VCO style.
