A set of 8 S&S SAC nozzles for 2004.5 to 2005 LLY Duramax injectors, in 30, 45, 60, 80 and 100% over stock. Nozzles are how you add fuel when your injector bodies are still healthy. The shop building your injectors swaps the nozzles and you keep your bodies, which costs a lot less than a full set of injectors.
Fits: 2004.5 to 2005 Chevy Silverado and GMC Sierra 2500HD and 3500HD with the LLY Duramax.
Sizes: 30%, 45%, 60%, 80%, 100% over stock nozzle flow. Pick your size above.
Part numbers: NZL-LLY-30SAC (30% over LLY nozzle set); NZL-LLY-45SAC (45% over LLY nozzle set); NZL-LLY-60SAC (60% over LLY nozzle set); NZL-LLY-80SAC (80% over LLY nozzle set); NZL-LLY-100SAC (100% over LLY nozzle set)
Set: 8 nozzles, one engine.
Install: nozzles go on the injector bodies and the injectors get tested by a qualified injection shop. This is not a driveway swap.
Tuning: larger nozzles need tuning to match.
Questions on fitment? Call our shop at 865 640 2097 and talk to a tech who works on these trucks every day.
How S&S Sizes Nozzles
The percentage is the increase in nozzle flow over the stock nozzle. That is the sizing convention the whole industry uses, so a 60% over S&S nozzle flows 60% more than the factory one. S&S hones its nozzles with its own process for clean, consistent holes and flow matches them to within 1% across a set, so every cylinder gets the same fuel.
Sizing injectors and a pump together? See our S&S Fuel System Planner for injector and CP3 sizing by horsepower.
Photo is a representative image. The part you receive matches the part number above.
