Fuel Injector Clinic 1000cc High Impedance Fuel Injector Set for Small Block Chevy Gen II Engines (IS300-1000H)
Upgrade your Small Block Chevy Gen II fuel system with the Fuel Injector Clinic IS300-1000H High Impedance Fuel Injector Set. Designed for serious naturally aspirated, supercharged, turbocharged, and E85-powered performance builds, this complete set of eight injectors flows 1000cc/min (85 lb/hr) at 43.5 PSI (3 Bar) and 1040cc/min (100 lb/hr) at the factory-style 58 PSI (4 Bar) fuel pressure. Utilizing the latest injector technology, these injectors deliver exceptional linearity, excellent short pulse width repeatability, and outstanding drivability while providing the fuel volume required for high-horsepower combinations.
The IS300-1000H utilizes Fuel Injector Clinic's industry-leading Data Match Technology, ensuring every injector is dynamically matched for exceptional cylinder-to-cylinder consistency. Each injector is individually serial numbered and supplied with a detailed Data Match Sheet containing injector-specific flow and latency values for more accurate ECU calibration. Plug and Play GM ECU calibration data is also available from Fuel Injector Clinic to simplify tuning on supported GM engine management systems.
This injector set includes PGTUSC8 injector connector pigtails for wiring harness conversion. If you prefer not to modify your factory wiring, optional PADPUtoJ8 Plug and Play adapters are available separately, allowing installation without cutting or soldering. Fuel Injector Clinic chooses brand-new, unused injectors rather than remanufactured or core-program injectors, helping maximize long-term reliability and performance.
Quick Specs
- Part Number: IS300-1000H
- Application: Small Block Chevy Gen II engines
- Injector Quantity: 8
- Injector Flow Rate: 1000cc/min (85 lb/hr) at 43.5 PSI (3 Bar)
- Injector Flow Rate: 1040cc/min (100 lb/hr) at OE 58 PSI (4 Bar)
- Injector Type: High impedance (saturated)
- Includes PGTUSC8 injector pigtails
- Optional PADPUtoJ8 Plug and Play adapters available
- Plug and Play GM ECU calibration data available
- Fuel Injector Clinic Data Match Technology
- Each injector individually serial numbered
- Detailed Data Match Sheet included
- Flow tested at 43.5 PSI (3 Bar)
- Tested using CF-16B calibration fluid at 90 degrees Fahrenheit
- Application-specific O-rings included
- Lifetime warranty against manufacturing defects
Features
- Designed specifically for Small Block Chevy Gen II engine applications
- Flows 1000cc/min (85 lb/hr) at 43.5 PSI and 1040cc/min (100 lb/hr) at OE 58 PSI fuel pressure
- Latest high impedance injector technology provides exceptional fuel control
- Excellent linearity and superior short pulse width repeatability
- Fuel Injector Clinic Data Match Technology provides precise injector matching
- Each injector is individually serial numbered with a detailed calibration sheet
- Plug and Play GM ECU calibration data available for supported applications
- Includes PGTUSC8 wiring pigtails for connector conversion
- Optional PADPUtoJ8 adapters allow installation without cutting or soldering
- Brand-new injectors eliminate the risks associated with remanufactured core injectors
- Application-specific O-rings included for proper installation
- Excellent idle quality and street drivability while supporting high horsepower
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
Fitment
- Small Block Chevy Gen II engine applications requiring a set of eight high impedance fuel injectors
- Compatible with factory-style and compatible aftermarket fuel systems designed for this injector configuration
Installation and Connector Information
This injector set requires changing the injector connectors on your engine harness. Included PGTUSC8 pigtails can be soldered onto the factory harness, or optional PADPUtoJ8 Plug and Play adapters can be purchased separately to complete the installation without cutting or soldering the original wiring.
Fuel Injector Clinic specifies this connector conversion because it uses brand-new, unused injectors instead of remanufactured or core-program injectors, providing greater reliability and more consistent long-term performance.
FAQs
Do these injectors require a wiring harness modification?
Yes. The included PGTUSC8 pigtails are designed for wiring harness conversion. If you prefer not to modify your harness, optional PADPUtoJ8 Plug and Play adapters are available separately.
Is ECU calibration data available?
Yes. Fuel Injector Clinic provides Plug and Play GM ECU calibration data for supported engine management systems, helping simplify tuning and improve calibration accuracy.
Why Buy From Beefcake Racing?
Beefcake Racing proudly offers genuine Fuel Injector Clinic fuel injectors backed by competitive pricing, fast shipping, and knowledgeable technical support. Whether you're upgrading a street-driven Small Block Chevy or building a high-horsepower race combination, our team can help you select the correct injectors and supporting fuel system components for your application.
Questions about injector sizing or connector adapters?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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