Fuel Injector Clinic Six Cylinder 1200cc Custom Injector Set - 53mm Height - 14mm Top O-Ring - 14mm Bottom O-Ring (1200-53-14-14-6)
The Fuel Injector Clinic 1200cc Custom Injector Set is designed for custom six-cylinder performance applications that require exceptional fuel delivery, precise injector matching, and dependable drivability. Featuring a 53mm injector height, 14mm top O-ring, and 14mm bottom O-ring, this injector set is an excellent choice for custom fuel system combinations where exact injector dimensions are critical for proper installation and long-term performance. Every custom injector set includes solder-in pigtails, and Fuel Injector Clinic's experienced 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, providing exceptional short pulse width control, excellent idle quality, and highly consistent fuel delivery throughout the operating range. Every injector set includes the proper O-rings for the specified configuration and is backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Specifications
- Manufacturer: Fuel Injector Clinic
- Product Code: 1200-53-14-14-6
- SKU: ISC-1200H-6
- Injector Flow Rate: 1200cc
- Injector Quantity: Set of 6
- Injector Height: 53mm
- Top O-Ring Diameter: 14mm
- Bottom O-Ring Diameter: 14mm
- 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.
- 53mm injector body designed for compatible factory and aftermarket fuel system configurations.
- 14mm top O-ring and 14mm bottom O-ring configuration.
- Precisely matched using Fuel Injector Clinic's exclusive Data Match Technology.
- Each injector is individually serial numbered and includes a comprehensive Data Match Sheet.
- Excellent short pulse width control for smooth idle quality and superior drivability.
- Highly consistent injector matching simplifies 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.
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Fitment
Custom six-cylinder applications requiring:
- 53mm injector height
- 14mm top O-ring diameter
- 14mm 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 so we can verify proper injector compatibility.
FAQs
Are solder-in injector pigtails included?
Yes. Every Fuel Injector Clinic custom injector set includes solder-in injector pigtails for straightforward installation.
What makes Fuel Injector Clinic's Data Match Technology different?
Each injector is individually tested and matched, with injector-specific flow and latency data included on the Data Match Sheet for more accurate ECU tuning and exceptionally consistent fuel delivery.
Will this injector set fit my custom application?
This injector set is designed for custom six-cylinder applications requiring a 53mm injector with a 14mm top O-ring and 14mm bottom O-ring. Contact Beefcake Racing before ordering if you'd like assistance verifying compatibility.
Why Buy From Beefcake Racing?
Beefcake Racing is your trusted source for Fuel Injector Clinic products and technical support. Our experienced team can help verify injector sizing, dimensions, and compatibility so you receive the correct injectors for your project with expert guidance 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

