Product Description
S&S Diesel LB7-80SAC-SET 80% Over Injector Set (New) — 2001–2004 GM Duramax 6.6L LB7
Serious fueling for your LB7. This brand-new S&S Diesel Motorsport 80% over SAC injector set is engineered for high-output LB7 builds that need precise, consistent flow across all eight injectors. S&S injectors are built and tested on OE-grade equipment, with sizing offered in matched sets for durability and balance.
Fitment
- 2001–2004 GM Duramax 6.6L LB7 (Chevy Silverado 2500/3500, GMC Sierra 2500/3500).
Key Features
- 80% over SAC nozzles for major fueling headroom (performance use).
- Matched set for uniform flow and smooth operation.
- SAC design developed to address known LB7 VCO durability issues.
What’s Included
- (8) New S&S Diesel Motorsport 80% Over SAC Injectors for LB7.
Recommended Supporting Parts
- LB7 Fuel Injectors & Components
- AirDog Lift Pumps or FASS Lift Pumps for consistent supply pressure
- LB7 Fuel System Upgrades (filtration, lines, fittings)
- LB7 Tuning & Electronics (as needed for performance builds)
Helpful Notes
- 80% over injectors are intended for performance builds; supporting airflow, fuel supply, and calibration are typically required.
- Verify local emissions requirements before installation.
FAQ
Do I need tuning with 80% over injectors?Yes—large SAC injectors generally require appropriate calibration and supporting mods to maintain drivability and exhaust cleanliness.
Are these new or remanufactured?This listing is for a new matched set of eight injectors.
Why SAC over the stock LB7 VCO design?SAC00®-style solutions were developed to address the LB7’s known VCO durability issues while maintaining precise fueling.
Will these fit all 2001–2004 LB7 trucks?Yes—these are designed for 2001–2004 GM Duramax 6.6L LB7 platforms (Silverado/Sierra 2500/3500).
