Product Description
S&S Diesel LLY-150SAC-R-SET 150% Over Reman Injector Set — 2004.5–2005 GM Duramax 6.6L LLY
Deliver serious fuel with 150% over SAC-nozzle injectors engineered by S&S Diesel Motorsport. Each set is matched for consistent cylinder-to-cylinder delivery to support competition-level builds while maintaining OE-caliber quality and durability.
Fitment
- 2004.5–2005 Chevrolet Silverado/Sierra 2500HD/3500HD — 6.6L Duramax LLY
- Direct-fit replacement for LLY common-rail applications
What’s Included
- Eight (8) S&S LLY 150% Over Reman SAC-nozzle injectors (matched set)
- New sealing washers and install hardware as provided by manufacturer
- Core return required (reman program)
Recommended Supporting Parts
- Duramax Injectors & Nozzles Category — browse related injector options for LLY.
- GM Duramax Fuel Lift Pumps — ensure stable low-pressure supply for high-flow injectors.
- LLY FCA (Fuel Control Actuator) — fresh FCA helps the CP3 control rail pressure accurately.
- Airdog Raptor RP-4G 100 GPH Lift Pump (01–10) — proven supply pump support for LLY builds.
- Shop All S&S Diesel at CPP — pumps, injectors, and fueling components.
Helpful Notes
- 150% over injectors are competition-level. Proper tuning, airflow, and fuel supply upgrades are required.
- Core program terms apply; cores must be serviceable per S&S standards.
- Verify local emissions compliance for your intended use.
FAQ
- Are these injectors truly “150% over”?
Yes. “150%” refers to the increase in nozzle flow over stock using the industry’s % convention. - Do I need tuning?
Yes. 150% over injectors require custom calibration and adequate air/fuel system support. - What’s the difference between SAC and VCO nozzles?
SAC nozzles are favored in performance use for durability and flow; stock-style VCO is typically used for OE replacements. - Are these new or reman?
This listing is the reman set. S&S also offers new-body options in some applications. - Is a core charge required?
Yes. A refundable core deposit applies; cores must meet acceptance criteria.