Product Description
S&S Diesel LB7-150SAC-SET 150% Over Injectors (New) — 2001–2004 GM Duramax 6.6L LB7
Build serious fuel delivery with a balanced, brand-new set of 8 S&S Diesel Motorsport 150% over SAC-type injectors for the 2001–2004 LB7 Duramax. Designed for high-performance builds with proper supporting mods and calibration, these injectors deliver precise, consistent flow and OE-level quality control.
Fitment
- 2001–2004 Chevrolet Silverado/GMC Sierra 2500HD/3500HD — 6.6L Duramax LB7 (set of 8 injectors).
What’s Included
- (8) New S&S Diesel Motorsport 150% over SAC-type injectors (LB7-150SAC-SET), flow-balanced as a matched set.
- Injector set data per S&S process and spec; built and verified to OE-level standards.
Recommended Supporting Parts
- GM Duramax Parts — All Generations
- Duramax Injectors & Nozzles Category
- AirDog II-5G DF-100 (LB7/LLY/LBZ) Lift Pump
- AirDog Fuel Systems & Parts (Duramax)
- LB7 High-Pressure Injector Line Set (BD Diesel)
- LB7 Injector Install Super Kit (DTECH)
- Fuel Filtration & Filter Head Upgrades
Helpful Notes
- Tuning and supporting mods are required for proper operation of 150% over injectors (e.g., upgraded CP3(s), turbo system, fuel supply, and custom calibration).
- Core policy and emissions applicability depend on build configuration and local law.
FAQ
Will these 150% over injectors work on a stock turbo and pump?These are intended for high-output builds. Plan on an upgraded CP3 (or dual fuelers), appropriate turbo(s), lift pump, and custom tuning.
Are these a direct fit for LB7 trucks?Yes. They are engineered for 2001–2004 GM Duramax 6.6L LB7 applications and install like OE with standard LB7 hardware and lines.
Do I need to replace injector lines during the swap?It’s strongly recommended on LB7 due to age and corrosion. Fresh lines help prevent contamination and sealing issues during installation.
What’s the difference between SAC and the original VCO nozzle?SAC-style nozzles are favored for durability and consistent flow under performance use, whereas early LB7 VCO designs are known for shorter service life.
