Fuel Injector Clinic 775cc High Impedance Fuel Injector Set for 1983-1986 Buick Regal T-Type & 1984-1987 Buick Grand National (IS309-0775H)
Upgrade your turbo Buick's fuel system with the Fuel Injector Clinic IS309-0775H 775cc High Impedance Fuel Injector Set. Engineered specifically for the legendary Buick Regal T-Type and Grand National, this matched set of six top-feed injectors provides the additional fuel capacity needed for serious street and strip performance while maintaining exceptional idle quality and drivability. Featuring modern high impedance ball and seat injector technology, these injectors deliver precise fuel metering, outstanding throttle response, and consistent performance across the entire RPM range.
Every injector is individually serial numbered and precisely matched using Fuel Injector Clinic's proprietary Data Match Technology. A detailed Data Match Sheet is included with every set, providing injector-specific flow and latency values to simplify ECU tuning and maximize cylinder-to-cylinder consistency. This injector kit includes USCAR injector pigtails (PGTUSC6), while optional Plug and Play adapter harnesses (PADPUtoJ6) are available separately for installers who prefer not to modify the factory wiring harness.
Fuel Injector Clinic exclusively uses brand-new injectors rather than remanufactured or core-based injectors, providing greater long-term reliability for demanding performance applications. Since these injectors utilize a modern connector design, either the included pigtails or optional Plug and Play adapter harnesses are required during installation.
Quick Specs
- Part Number: IS309-0775H
- Injector Flow Rate: 775cc/min
- Injector Quantity: 6
- High impedance (saturated) ball and seat injectors
- Top-feed injector design
- Includes USCAR injector pigtails (PGTUSC6)
- Optional Plug and Play adapter harnesses available (PADPUtoJ6)
- Flow matched using Fuel Injector Clinic Data Match Technology
- Each injector individually serial numbered
- Detailed Data Match Sheet with injector-specific flow and latency values included
- 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 specifically for turbocharged Buick Regal T-Type and Grand National applications
- 775cc high impedance injectors provide increased fueling capacity for high-performance street and race builds
- Modern ball and seat injector technology delivers excellent linearity and fuel control
- Superior short pulse width repeatability for smoother idle and excellent drivability
- Fuel Injector Clinic Data Match Technology ensures exceptional injector-to-injector consistency
- Each injector is individually serial numbered with a detailed Data Match Sheet included
- Includes USCAR injector pigtails for wiring conversion
- Optional Plug and Play adapter harnesses available for a no-cut installation
- Brand-new injectors eliminate the risks associated with remanufactured cores
- Application-specific O-rings included for proper installation
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
Fitment
- 1983 Buick Regal T-Type
- 1984 Buick Regal T-Type
- 1985 Buick Regal T-Type
- 1986 Buick Regal T-Type
- 1984 Buick Grand National
- 1985 Buick Grand National
- 1986 Buick Grand National
- 1987 Buick Grand National
FAQs
Do these injectors require modifications to the factory wiring harness?
Yes. The IS309-0775H uses modern injector connectors that differ from the factory wiring. The included USCAR pigtails can be soldered into the factory harness, or optional PADPUtoJ6 Plug and Play adapter harnesses can be used for a no-cut, no-solder installation.
What makes Fuel Injector Clinic injectors easier to tune?
Fuel Injector Clinic's proprietary Data Match Technology provides extremely accurate injector matching along with individual flow and latency data for every injector. Combined with excellent short pulse width control, this allows for smoother idle quality, improved drivability, and more precise ECU calibration.
Why Buy From Beefcake Racing?
Beefcake Racing proudly offers genuine Fuel Injector Clinic products backed by competitive pricing, fast shipping, and expert technical support. Whether you're building a responsive street car or a high-horsepower Grand National capable of dominating at the track, our knowledgeable team can help you select the right injectors and supporting fuel system components for your build.
Need help selecting the proper injector size for your Buick build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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