Fuel Injector Clinic 525cc High Impedance Fuel Injector Set for Small Block Chevy Gen II Engines (IS300-0525H)
Step up the fueling performance of your Small Block Chevy Gen II engine with the Fuel Injector Clinic IS300-0525H High Impedance Fuel Injector Set. This complete set of eight injectors flows 525cc/min (50 lb/hr) at 43.5 PSI (3 Bar) and 600cc/min (58 lb/hr) at the factory-style 58 PSI (4 Bar) fuel pressure. Designed using the latest injector technology, these injectors provide exceptional linearity, excellent short pulse width repeatability, and smooth drivability, making them an outstanding choice for naturally aspirated, supercharged, turbocharged, and E85-capable performance combinations.
The IS300-0525H injector set is precisely matched using Fuel Injector Clinic's proprietary Data Match Technology. Every injector is individually serial numbered and includes a comprehensive Data Match Sheet detailing injector-specific flow and latency values for accurate ECU calibration. Plug and Play GM ECU calibration data is also available from Fuel Injector Clinic, helping 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 specifies this connector arrangement because it utilizes brand-new, unused injectors instead of remanufactured or core-program injectors, providing superior long-term reliability and consistent performance.
Quick Specs
- Part Number: IS300-0525H
- Application: Small Block Chevy Gen II engines
- Injector Quantity: 8
- Injector Flow Rate: 525cc/min (50 lb/hr) at 43.5 PSI (3 Bar)
- Injector Flow Rate: 600cc/min (58 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 525cc/min (50 lb/hr) at 43.5 PSI and 600cc/min (58 lb/hr) at OE 58 PSI fuel pressure
- Latest high impedance injector technology delivers precise fuel control
- Excellent linearity and outstanding short pulse width repeatability
- Fuel Injector Clinic Data Match Technology provides precise injector-to-injector matching
- Each injector is individually serial numbered with an included Data Match 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 concerns associated with remanufactured core injectors
- Application-specific O-rings included for proper installation
- Excellent idle quality, drivability, and tuning characteristics
- 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 wiring harness. The included PGTUSC8 pigtails can be soldered onto the factory harness, or optional PADPUtoJ8 Plug and Play adapters can be purchased separately to provide a true plug-and-play installation without cutting or soldering.
Fuel Injector Clinic specifies this connector conversion because it uses brand-new, unused injectors rather than remanufactured or core-program injectors, helping ensure maximum reliability, consistency, and long service life.
FAQs
Do these injectors require modifying the factory wiring?
Yes. The included PGTUSC8 pigtails are designed to replace the factory injector connectors. If you prefer not to cut or solder the wiring harness, optional PADPUtoJ8 Plug and Play adapters are available separately.
Is calibration data available for GM ECUs?
Yes. Fuel Injector Clinic provides Plug and Play GM ECU calibration data for supported engine management systems, helping simplify tuning and deliver accurate injector characterization.
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-performance engine, our team can help you choose the correct injectors and supporting fuel system components for your combination.
Questions about injector sizing or connector adapters?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
