Fuel Injector Clinic Six Cylinder 1200cc Custom Injector Set - 64mm Height - 14mm Top O-Ring - 15mm Bottom O-Ring (1200-64-14-15-6)
The Fuel Injector Clinic 1200cc Custom Injector Set is built for custom six-cylinder performance applications that demand exceptional fueling accuracy, reliable operation, and outstanding drivability. Featuring a 64mm injector height, 14mm top O-ring, and 15mm bottom O-ring, this injector set is ideal for custom fuel systems where proper injector dimensions are critical for a precise fit and dependable performance. Every custom injector set includes solder-in pigtails, and Fuel Injector Clinic's knowledgeable technical team is available to help ensure you receive the correct injector configuration for your application.
Each injector is individually matched using Fuel Injector Clinic's proprietary Data Match Technology, then assigned its own serial number and supplied with a detailed Data Match Sheet containing individual flow and latency values. Every injector is flow tested at 43.5 PSI (3 Bar) using CF-16B calibration fluid at 90 degrees Fahrenheit, delivering excellent short pulse width control, smooth idle quality, and highly consistent fuel delivery across the operating range. Every injector set includes the appropriate O-rings for this configuration and is backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Specifications
- Manufacturer: Fuel Injector Clinic
- Product Code: 1200-64-14-15-6
- SKU: ISC-1200H-6
- Injector Flow Rate: 1200cc
- Injector Quantity: Set of 6
- Injector Height: 64mm
- Top O-Ring Diameter: 14mm
- Bottom O-Ring Diameter: 15mm
- Flow Test Pressure: 43.5 PSI (3 Bar)
- Calibration Fluid: CF-16B at 90 degrees Fahrenheit
- Data Matching: Proprietary Data Match Technology with individual serial numbers and Data Match Sheet
- Included: Solder-in injector pigtails and required O-rings
- Warranty: Lifetime warranty against manufacturing defects
Features
- 1200cc high-performance fuel injectors for custom six-cylinder applications.
- 64mm injector body designed for compatible factory and aftermarket fuel systems.
- 14mm top O-ring and 15mm bottom O-ring configuration.
- Individually matched using Fuel Injector Clinic's exclusive Data Match Technology.
- Each injector is individually serial numbered and includes a comprehensive Data Match Sheet.
- Outstanding short pulse width control for excellent idle quality and street manners.
- Highly consistent injector matching helps simplify ECU calibration and tuning.
- Flow tested at 43.5 PSI (3 Bar) using CF-16B calibration fluid.
- Includes solder-in injector pigtails for installation.
- Supplied with the proper O-rings for the specified injector dimensions.
- Protected by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Fitment
Custom six-cylinder applications requiring:
- 64mm injector height
- 14mm top O-ring diameter
- 15mm bottom O-ring diameter
If your application utilizes an aftermarket intake manifold, fuel rail, or custom fuel system components, please contact Beefcake Racing before placing your order to verify proper injector compatibility.
FAQs
Do these injectors include wiring connectors?
Yes. Every Fuel Injector Clinic custom injector set includes solder-in injector pigtails for installation.
How does Data Match Technology improve tuning?
Each injector is individually tested and matched, with injector-specific flow and latency data included on the Data Match Sheet for more precise ECU calibration and consistent engine performance.
Will these injectors fit my custom fuel system?
This injector set is designed for six-cylinder applications requiring a 64mm injector with a 14mm top O-ring and 15mm bottom O-ring. Contact Beefcake Racing before ordering if you would like help confirming compatibility.
Why Buy From Beefcake Racing?
Beefcake Racing offers expert advice to help you choose the correct Fuel Injector Clinic injector configuration for your build. Our experienced team can verify dimensions, flow rate, and compatibility so you receive the right injectors the first time, backed by knowledgeable customer support before and after the sale.
Questions? Contact Beefcake Racing today:
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

