Product Description
S&S Diesel LB7-300SAC-SET 300% Over Injector Set (New) — 2001–2004 GM Duramax 6.6L LB7
Unlock serious fueling on your LB7 build with a precision-matched, brand-new S&S Diesel Motorsport injector set. These 300% Over SAC injectors are engineered for consistent flow across all eight, durability under high cylinder pressures, and the repeatability tuners demand.
Fitment
- 2001–2004 Chevrolet Silverado/GMC Sierra 2500/3500 with 6.6L Duramax LB7
- Direct replacement common-rail injectors; intended for performance/competition builds
Key Features
- New (not reman) S&S Diesel Motorsport injectors — set of 8
- SAC-style performance nozzles honed for 300% over flow
- Tight flow-matching for cylinder-to-cylinder consistency
- Designed for high-output, custom-calibrated LB7 applications
What’s Included
- (8) New S&S LB7 injectors — 300% Over (LB7-300SAC-SET)
- New sealing hardware as supplied by S&S
- Set-level flow matching and test documentation (as provided by S&S)
Recommended Supporting Parts
- Shop All S&S Diesel at CPP
- Fuel System Upgrades — lift pumps, filtration, lines & fittings
- Injector & Nozzle Components
Installation Notes
- Professional installation and custom tuning strongly recommended
- Verify fuel supply (lift pump/filtration) and return system health before install
- For off-road/competition use where applicable; verify local regulations
FAQ
Will these fit my 2001–2004 LB7?Yes. This set targets 2001–2004 GM 6.6L Duramax LB7 trucks (Chevy/GMC 2500/3500).
Are these new or remanufactured?This listing is for a new set. S&S also offers other types/flows on their LB7 page.
Do I need tuning?Yes—at 300% over, proper custom calibration, air system, and fuel supply are required.
What about price?S&S lists LB7 injector sets in a variant-dependent range of $1,968.00–$6,562.40. The 300% Over (New) set is one of those variants. Final price depends on selected options.
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