Product Description
S&S Diesel LB7-65SAC-R-SET 65% Over Injector Set (Reman) — 2001–2004 GM Duramax 6.6L LB7
Unlock serious fueling capacity for your LB7 build with a matched 65% over reman injector set from S&S Diesel Motorsport. Built with durable SAC-style nozzles, each injector is balanced as a set for smooth operation and repeatable performance.
Fitment
- 2001–2004 Chevrolet Silverado / GMC Sierra 2500HD/3500HD
- 6.6L Duramax LB7 (VIN code 1)
Highlights
- Remanufactured S&S Diesel Motorsport LB7 injectors with SAC-style nozzles
- Approx. 65% over stock flow — for performance applications
- Balanced as a set for clean idle and drivability
- Engineered for durability vs. early VCO-style OE nozzles
What’s Included
- (8) Reman S&S LB7 injectors — 65% over
- Set is flow-matched and balanced
- Core return required (typical LB7 injector core policy)
Recommended Supporting Parts (CPP Internal Links)
- GM Duramax Parts — All Generations
- AirDog Lift Pumps for Duramax (LB7/LLY/LBZ)
- LB7 Injector Install Kit
- LB7 Fuel Return Line Kit
- LB7 Injector Cups & O-Rings
Installation & Notes
- Professional installation and calibration/tuning strongly recommended for 65% over injectors.
- Verify emissions compliance for your intended use and locale.
FAQ
Do I need tuning with 65% over injectors?Yes. Calibrations are typically required to properly manage the added fuel and maintain drivability.
Are these injectors balanced as a set?Yes. Each injector is set-balanced to help ensure smooth idle, reduced haze, and consistent cylinder-to-cylinder fueling.
What’s the advantage of SAC-style nozzles over the original LB7 design?SAC nozzles are known for improved durability versus the early VCO-style OE nozzles commonly associated with LB7 failures.
Is a core charge required?Yes. A core return is required on LB7 reman sets; see checkout details for core handling and timing.
