Fuel Injector Clinic 650cc High Impedance Fuel Injector Set for 1983-1986 Buick Regal T-Type & 1984-1987 Buick Grand National (IS309-0650H)
Upgrade the fueling capability of your turbo Buick with the Fuel Injector Clinic IS309-0650H 650cc High Impedance Fuel Injector Set. Engineered specifically for the iconic Buick Regal T-Type and Grand National, this matched set of six top-feed injectors delivers the precise fuel control needed for modified street cars and high-performance builds. Featuring modern injector technology, these injectors provide outstanding idle quality, crisp throttle response, and consistent fuel delivery while offering the additional flow capacity required for increased boost and horsepower.
Built around Fuel Injector Clinic's advanced high impedance ball and seat injector design, the IS309-0650H offers exceptional linearity and superior short pulse width repeatability for easier tuning across the entire operating range. Each injector is individually serial numbered and precisely matched using Fuel Injector Clinic's proprietary Data Match Technology, with every set including a detailed Data Match Sheet containing injector-specific flow and latency values for accurate ECU calibration. This kit includes USCAR injector pigtails (PGTUSC6), while optional Plug and Play adapter harnesses (PADPUtoJ6) are available separately for installations that require no cutting or soldering.
Fuel Injector Clinic utilizes brand-new injectors instead of remanufactured or core-based injectors, eliminating the reliability concerns associated with rebuilt units. Because of the connector design used on these modern injectors, either the included pigtails or optional Plug and Play adapters are required when installing them on the factory wiring harness.
Quick Specs
- Part Number: IS309-0650H
- Injector Flow Rate: 650cc/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
- 650cc high impedance injectors provide increased fuel capacity for upgraded street and performance builds
- Includes USCAR injector pigtails for wiring conversion
- Optional Plug and Play adapter harnesses available for a no-cut installation
- Excellent injector linearity for precise fuel delivery
- Superior short pulse width repeatability improves idle quality and drivability
- Fuel Injector Clinic Data Match Technology delivers industry-leading injector consistency
- Each injector is individually serial numbered with detailed calibration data
- 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 plug directly into the factory wiring harness?
No. The IS309-0650H uses modern injector connectors that differ from the factory harness. The included USCAR pigtails can be soldered into the factory wiring, or optional PADPUtoJ6 Plug and Play adapter harnesses can be used to eliminate cutting or soldering.
Why does Fuel Injector Clinic use brand-new injectors instead of remanufactured units?
Fuel Injector Clinic chooses brand-new injectors to maximize long-term reliability and eliminate the potential issues associated with rebuilt or core-based injectors, making them a superior choice for demanding high-performance applications.
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 restoring a classic turbo Buick or building a high-horsepower Grand National, our experienced team can help you select the right injectors and supporting fuel system components for your combination.
Need help selecting the proper injector size for your Buick build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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