Product Description
S&S Diesel LB7-100SAC-SET 100% Over Injector (NEW) — 2001–2004 GM Duramax 6.6L LB7
Built for serious LB7 power. This brand-new S&S Diesel Motorsport 100% over SAC injector set (8 injectors) delivers twice the flow of stock with OE-level precision and balance. Each injector is built and tested on industry-leading equipment for clean atomization, consistent fueling, and reliable performance under load.
Fitment
- 2001–2004 Chevrolet Silverado 2500HD/3500HD — 6.6L Duramax LB7
- 2001–2004 GMC Sierra 2500HD/3500HD — 6.6L Duramax LB7
- Direct-fit replacement when paired with proper tuning and supporting mods
What You’re Getting
- (8) Brand-new S&S LB7 100% Over SAC Injectors (matched as a set)
- Flow-balanced set for consistent cylinder-to-cylinder delivery
- New bodies (not reman) for maximum longevity and reliability
Recommended Supporting Parts
- Duramax Injectors / Nozzles Category — browse related injector options and hardware.
- GM Duramax Fuel Lift Pumps — ensure stable supply for high-flow injectors.
- Fuel Filtration & Filter Housings — protect your investment with upgraded filtration.
- Shop All S&S Diesel at CPP — more S&S injectors, pumps, and components.
Helpful Notes
- 100% over injectors require proper tuning and supporting airflow/fuel system mods.
- Consider a quality lift pump and fresh fuel filter head/seals for best results and injector longevity.
FAQ
Will these fit my 2001–2004 LB7 without custom tuning?These are 100% over injectors; plan on custom tuning and supporting upgrades. Stock calibrations are not intended for this flow rate.
Are these injectors brand-new or remanufactured?This listing is for a brand-new set (NEW). S&S also offers reman options, but this product is specified as NEW.
What supporting mods are recommended with 100% over injectors?A quality lift pump, upgraded filtration, and appropriate turbo/exhaust airflow mods, plus custom EFI Live or similar tuning.
Do these work on both Silverado and Sierra HD models?Yes — they’re designed for 2001–2004 Silverado 2500/3500 HD and Sierra 2500/3500 HD with the 6.6L LB7 Duramax.
