Product Description
S&S Diesel LB7-500SAC-R — 500% Over Injector (Reman) for 2001–2004 GM Duramax 6.6L LB7
Built for extreme fueling and serious builds, the S&S Diesel Motorsport LB7-500SAC-R 500% over reman injector set uses SAC-style nozzles and S&S race-calibrated internals to deliver massive flow with proven durability.
Fitment
- 2001, 2002, 2003, 2004 Chevrolet Silverado/GMC Sierra 2500HD & 3500 with 6.6L Duramax LB7
- Direct-fit LB7 common-rail applications; for off-road/competition builds where 500% over injectors are appropriate
What’s Included
- (8) Remanufactured S&S Diesel 500% Over LB7 Injectors (SAC-style) — Part #: LB7-500SAC-R
- Set is calibrated, flowed, and balanced by S&S
- Core return required per supplier policy
Recommended Supporting Parts
- LB7 Injectors & Components
- 2001–2004 LB7 Fuel System Upgrades — lift pumps, filters, lines
- Shop All S&S Diesel at CPP
- LB7 Injector Line Kits
Installation Notes
- Professional installation and appropriate engine/transmission calibration required for 500% over injectors
- Verify fuel supply (lift pump/filtration) and high-pressure system health before install
- Emissions status varies; intended for competition/off-road use where applicable
FAQ
- Are these sold as a set?
Yes, pricing is for a full set of eight LB7 injectors unless otherwise noted. - Do I need custom tuning?
Yes. 500% over injectors require custom calibration and appropriate supporting mods (air, fuel, drivetrain). - What nozzle style is used?
SAC-style nozzles for improved durability over stock VCO designs. - Will these fit my 2001–2004 LB7 without modifications?
They are built for LB7 fitment; ensure your fuel system and build are matched to this flow level. - Is there a core charge?
Yes—core return is required per supplier terms.
