Product Description
S&S Diesel LB7-450SAC 450% Over Injector (New) — 2001–2004 GM Duramax 6.6L LB7 (Single)
This is a single S&S Diesel Motorsport LB7-450SAC injector built with a high-flow SAC nozzle for extreme fueling on the 2001–2004 Duramax LB7 platform. Intended for competition builds that demand maximum fuel delivery. For general LB7 injector tech and S&S injector quality standards, see S&S’s injector catalog and Duramax injector category. [Sources: S&S Injectors overview; S&S Duramax Injectors]
Fitment
- 2001–2004 Chevrolet/GMC 2500/3500 HD with 6.6L Duramax LB7 (all trims)
- Direct-fit LB7 common-rail injector; built for race/off-road use due to 450% over fuel delivery
What You’re Getting
- (1) New S&S Diesel Motorsport LB7-450SAC injector (single unit)
- SAC nozzle, high-flow internals, calibrated on Bosch equipment
Recommended Supporting Parts (CPP Diesel)
- LB7 Injector Line Set (set of 8) — replace corroded lines during injector service.
- Fleece LB7 Injection Lines — premium replacement lines for clean installs.
- LB7 Injector Install Kit — gaskets, seals, hardware to do it right.
- DTech Injector Installation Super Kit (LB7) — all-in-one service pack.
- AirDog 4G Lift Pump (01–10 Duramax) — stable supply for high-demand fueling.
- Shop All GM Duramax Parts — injectors, CP3/CP4, filters, lines & more.
- Shop All S&S Diesel at CPP
Install Notes
- Tuning required: 450% over flow is for competition builds; professional calibration and supporting fuel/air mods are essential.
- Replace high-pressure lines when changing injectors to avoid contamination-related failure.
FAQ
Is this a single injector or a set?This listing is for one (1) single LB7-450SAC injector. Order quantity 8 for a full set.
Do I need tuning for a 450% over injector?Yes. At this flow level, custom ECU calibration and appropriate turbo/fuel system upgrades are required.
What trucks does it fit?2001–2004 Chevrolet/GMC 2500/3500 HD with 6.6L Duramax LB7.
Why upgrade lines during injector service?Old LB7 lines are prone to corrosion and can contaminate a new injector. Fresh lines protect your investment.
