S&S DIESEL LBZ-450SAC-SET 450% OVER (NEW) — 2006–2007 GM DURAMAX 6.6L LBZ (SET OF 8)

S&S Diesel LBZ-450SAC-SET 450% Over Injectors (NEW) — 2006–2007 GM Duramax 6.6L LBZ

When your LBZ build demands serious fuel, this brand-new S&S Diesel Motorsport 450% over injector set delivers. Purpose-built SAC-nozzle injectors are precision flow-matched and engineered for high horsepower race applications. Set of 8.

Fitment

• 2006–2007 Chevy Silverado/GMC Sierra 2500HD & 3500HD — 6.6L Duramax LBZ
• Direct LBZ application; intended for competition/off-road builds with appropriate supporting mods.

What’s Included

• (8) Brand-new S&S Diesel Motorsport LBZ injectors — SAC nozzle, 450% over
• Matched set built to tight flow tolerances
• O-rings/seals as supplied by manufacturer

Recommended Parts (CPP Internal Links Only)

• Duramax Injectors & Nozzles — browse related injector hardware and service parts.
• Duramax Fuel Systems / Components — supply upgrades (lift pumps, filtration) to feed big injectors.
• ARP 230-4201 Head Stud Kit — recommended for high cylinder pressures.
• Shop All GM Duramax Parts — intake, turbo, intercooler, and drivetrain support for complete builds.

Helpful Notes

• These are very large (450% over) and are best suited for race applications with adequate air, fuel supply, and tuning.
• Professional install and custom calibration strongly recommended.
• Verify local emissions regulations before purchase/use.

FAQ

This listing is for a brand-new set (NEW), not remanufactured.

No. 450% over injectors require significant airflow (turbo(s)), robust fuel supply (lift pump/filtration), and custom tuning. Pair with appropriate hardware for best results.

Head studs are strongly recommended on higher boost and cylinder pressure LBZ builds to help maintain head gasket integrity.

Yes. Custom calibration is required to safely utilize injector capacity and maintain driveability.

2006–2007 Chevy Silverado/GMC Sierra 2500/3500 with the 6.6L Duramax LBZ engine.