Product Description
S&S Diesel LBZ-300SAC-SET 300% Over Injector Set (NEW) — 2006–2007 GM Duramax 6.6L LBZ
Built for serious competition power on the 2006–2007 LBZ, this brand-new S&S Diesel Motorsport set uses SAC nozzles opened to ~300% over stock and is flow-matched for consistency. Intended for race/off-road builds with extensive supporting mods.
Fitment
- 2006–2007 Chevrolet/GMC 2500HD/3500HD with 6.6L Duramax LBZ
- Direct LBZ application; race use only. Requires extensive airflow, fuel supply, and calibration support.
What’s Included
- Set of 8 brand-new S&S LBZ injectors (LBZ-300SAC-SET)
- SAC-style nozzles honed to ~300% over stock
- Flow-matching and quality control documentation (per S&S methods)
Recommended Parts (Internal Links Only)
- Duramax Injectors & Nozzles Category — compare LBZ injector options and related hardware at CPP.
- Shop All S&S Diesel at CPP — match your injectors with S&S CP3s, pumps, and components.
- Duramax Fuel System Upgrades — lift pumps, filters, and lines to feed high-flow injectors.
- Duramax Turbochargers & Components — ensure adequate airflow for large-percent injectors.
- Duramax Head Studs & Gaskets — recommended for high cylinder pressure race builds.
Helpful Notes
- Tuning required: custom calibration is mandatory to run 300% injectors properly.
- Pair with an appropriate high-output CP3 (or dual fuelers) and lift pump.
- Not emissions compliant for on-road use.
FAQ
- Are these injectors brand-new or reman?
This listing is for a brand-new set (NEW), not remanufactured. - Can I run these on a lightly modified truck?
No. 300% SAC injectors are sized for competition builds with major airflow (turbo), fuel supply, and custom tuning. - Do I need a bigger CP3 and lift pump?
Yes. A high-output CP3 (or dual fuelers) and quality lift pump are strongly recommended to maintain rail pressure. - Will these pass emissions?
No. These are intended for off-road/competition use and are not emissions compliant for on-road vehicles. - Do I need head studs?
Strongly recommended for high boost and cylinder pressures typical of builds using 300% injectors.
