Fuel Injector Clinic 1200cc-D High Impedance Fuel Injector Set for LS3, LS7, LSA, L76, L92 & L99 Engines (IS303-1200H-D)
Support your high-performance GM LS build with the Fuel Injector Clinic IS303-1200H-D High Impedance Fuel Injector Set. Designed for LS3, LS7, LSA, L76, L92, and L99 engine applications, this complete set of eight injectors flows 1200cc/min (110 lb/hr) at 43.5 PSI (3 Bar) and 130 lb/hr (1350cc/min) at the factory 58 PSI (4 Bar) fuel pressure. Whether you're building a naturally aspirated stroker, supercharged street car, turbocharged race vehicle, or an E85-powered combination, these injectors provide the precise fuel delivery, excellent drivability, and consistent performance Fuel Injector Clinic is known for.
Utilizing the latest high impedance injector technology, the IS303-1200H-D features exceptional linearity, superior short pulse width repeatability, and Fuel Injector Clinic's proprietary Data Match Technology. Every injector is individually serial numbered and dynamically matched, with a detailed Data Match Sheet included to provide injector-specific flow and latency values for highly accurate ECU calibration. Plug and Play GM ECU calibration data is also available from Fuel Injector Clinic, simplifying tuning on supported GM engine management systems.
Each injector is configured with the proper O-rings for the factory application and is manufactured as a brand-new injector, not a remanufactured core. This results in exceptional reliability, consistent performance, and the outstanding idle quality expected from Fuel Injector Clinic products, even in demanding high-horsepower street and race applications.
Quick Specs
- Part Number: IS303-1200H-D
- Injector Flow Rate: 1200cc/min (110 lb/hr) at 43.5 PSI (3 Bar)
- Injector Flow Rate: 1350cc/min (130 lb/hr) at OE 58 PSI (4 Bar)
- Injector Quantity: 8
- High impedance (saturated) injectors
- Latest high-performance injector technology
- Fuel Injector Clinic Data Match Technology dynamic flow matching
- Each injector individually serial numbered
- Detailed Data Match Sheet with injector-specific flow and latency values included
- Plug and Play GM ECU calibration data available from Fuel Injector Clinic
- Flow tested at 43.5 PSI (3 Bar) using CF-16B calibration fluid at 90 degrees Fahrenheit
- Application-specific O-rings included
- Lifetime warranty against manufacturing defects
Features
- Designed for LS3, LS7, LSA, L76, L92, and L99 engine applications
- Flows 1200cc/min (110 lb/hr) at 43.5 PSI and 1350cc/min (130 lb/hr) at factory 58 PSI fuel pressure
- Latest high impedance injector technology delivers excellent idle quality and drivability
- Outstanding linearity and superior short pulse width control for easier tuning
- Fuel Injector Clinic Data Match Technology ensures exceptional injector-to-injector consistency
- Each injector is individually serial numbered with detailed calibration data
- Plug and Play GM ECU calibration data available for supported applications
- Application-specific O-rings included for proper installation
- Brand-new injectors eliminate the risks associated with remanufactured cores
- Ideal for naturally aspirated, supercharged, turbocharged, and E85 performance combinations
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
Fitment
- GM LS3 engine applications
- GM LS7 engine applications
- GM LSA engine applications
- GM L76 engine applications
- GM L92 engine applications
- GM L99 engine applications
FAQs
What does the 1200cc-D flow rating mean?
The IS303-1200H-D flows 1200cc/min (110 lb/hr) at the standard 43.5 PSI (3 Bar) test pressure and approximately 1350cc/min (130 lb/hr) at the factory GM 58 PSI (4 Bar) fuel pressure, making it an excellent choice for high-performance LS engine combinations.
Is tuning information available for factory GM ECUs?
Yes. Fuel Injector Clinic provides Plug and Play GM ECU calibration data for the IS303-1200H-D, helping simplify tuning and improve calibration accuracy on supported GM engine management systems.
Why Buy From Beefcake Racing?
Beefcake Racing proudly offers genuine Fuel Injector Clinic fuel injectors backed by competitive pricing, fast shipping, and expert technical support. Whether you're building a naturally aspirated LS7, a supercharged LSA, or a turbocharged LS3-powered project, our experienced team can help you choose the right injectors and supporting fuel system components for your combination.
Need help selecting the proper injector size for your LS build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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