Radium Engineering Fuel Rail Kit - Nissan VQ35 / VQ37 (3.5L & 3.7L) | 8AN ORB (20-0458)

Upgrade your VQ-powered Nissan's fuel system with the Radium Engineering VQ fuel rail kit. CNC machined and black anodized, this complete kit includes both fuel rails with four 8AN ORB ports per rail, laser engraved branding, and all mounting hardware — engineered for the full range of Nissan 3.5L and 3.7L VQ engines.

Key Features:

• Complete fuel rail kit (both rails included)
• Four 8AN ORB ports per rail
• Black anodized finish
• Laser engraved Radium Engineering branding
• CNC machined billet aluminum
• All mounting hardware included
• Compatible with all Nissan VQ 3.5L and 3.7L engines
• Radium Engineering quality and engineering

Performance Benefits:

• High Flow Capacity: 8AN ORB ports support high fuel volume demands
• Consistent Pressure: Rigid billet construction maintains fuel pressure across all injectors
• Flexible Plumbing: Multiple 8AN ORB ports allow versatile fuel system routing
• Premium Finish: Black anodized for corrosion resistance and clean appearance
• Precision Fitment: CNC machined for exact injector and mounting alignment
• Complete Kit: Both rails and all hardware included

Specifications:

• Brand: Radium Engineering
• Part Number: 20-0458
• Product: VQ Fuel Rail Kit
• Material: CNC machined billet aluminum
• Finish: Black anodized
• Engraving: Laser engraved
• Port Size: 8AN ORB (4 ports per rail)
• Contents: Both fuel rails + mounting hardware
• Weight: 2.3 lbs
• Barcode: 20-0458

Fitment Information:

• All Nissan VQ 3.5L engines (VQ35DE, VQ35HR)
• All Nissan VQ 3.7L engines (VQ37VHR)
• Common Applications: 350Z, 370Z, G35, G37, Q50, Q60, Maxima, Murano, Pathfinder, and other VQ-powered Nissan/Infiniti models
• Note: Verify injector compatibility for your specific application
• Installation: Professional installation recommended

What's Included:

• Radium Engineering billet aluminum fuel rails (both driver and passenger side)
• Mounting hardware
• Installation instructions
• Note: Fuel injectors, fuel lines, and AN fittings sold separately

Installation Notes:

• Professional installation recommended
• Remove factory fuel rails and injectors
• Install injectors into Radium fuel rails
• Mount fuel rails to intake manifold using included hardware
• Connect 8AN fuel lines to desired ORB ports
• Cap unused ORB ports with appropriate AN plugs
• Pressure test fuel system before starting engine
• Check for fuel leaks before driving

8AN ORB Ports - Versatile Fuel System Plumbing:

Each rail features four 8AN ORB (O-Ring Boss) ports, providing maximum flexibility for fuel system plumbing. ORB fittings use an O-ring seal rather than a tapered thread, providing leak-free connections that are easy to assemble and disassemble. The 8AN size provides ample flow capacity for high-power VQ builds. Having four ports per rail allows for multiple fuel system configurations, including front-feed, rear-feed, and return-style setups. Unused ports can be capped with AN plugs (sold separately).

CNC Machined Billet Aluminum:

The fuel rails are CNC machined from billet aluminum, ensuring precise dimensions and consistent quality. CNC machining produces tighter tolerances than casting, ensuring the injector bosses are perfectly aligned and the fuel rails mount correctly to the intake manifold. The billet construction provides excellent strength and rigidity, maintaining consistent fuel pressure across all injector positions on both banks of the VQ's V6 configuration.

Black Anodized Finish:

The black anodized finish provides excellent corrosion resistance and a clean, premium appearance that complements engine bay builds. Anodizing is an electrochemical process that creates a hard, durable oxide layer on the aluminum surface, protecting it from corrosion, fuel degradation, and wear. The black finish is UV-resistant and maintains its appearance over time, even in the harsh environment of the engine bay.

Laser Engraved Branding:

The Radium Engineering branding is laser engraved into the fuel rail surface, providing a permanent, high-quality finish that won't fade, peel, or chip. Laser engraving is a mark of quality manufacturing and attention to detail, reflecting Radium's commitment to premium product presentation.

VQ Engine Family Coverage:

The kit is designed for all Nissan VQ 3.5L and 3.7L engines, covering a wide range of popular Nissan and Infiniti platforms. The VQ35DE and VQ35HR (3.5L) are found in the 350Z, G35, Maxima, Murano, and many other models. The VQ37VHR (3.7L) is found in the 370Z, G37, Q50, Q60, and other performance-oriented models. This broad compatibility makes the Radium fuel rail kit a versatile solution for VQ-powered builds across the Nissan/Infiniti lineup.

Why Radium Engineering?

Radium Engineering is a highly respected manufacturer of precision fuel system components, known for innovative engineering and meticulous attention to detail. Their fuel rails are trusted by professional engine builders and serious enthusiasts worldwide for their quality construction, precise fitment, and reliable performance. Radium's deep understanding of performance fuel system requirements ensures their components are engineered to perform flawlessly in demanding applications.

Installation Tips:

• Use quality AN fittings and fuel-rated hose throughout
• Cap all unused ORB ports before pressurizing the system
• Pressure test to at least 1.5x operating pressure before starting engine
• Check all connections for leaks after first heat cycle
• Consult your tuner for injector sizing recommendations

Perfect For:

• Nissan 350Z / Infiniti G35 VQ35 performance builds
• Nissan 370Z / Infiniti G37 / Q50 / Q60 VQ37 builds
• High-power VQ builds requiring upgraded fuel rails
• E85 VQ builds needing high-flow fuel system components
• Any VQ 3.5L or 3.7L build seeking precision Radium Engineering fuel rails

Perfect For: Nissan and Infiniti VQ35/VQ37 builds seeking Radium Engineering fuel rail kit for high-flow, precision fuel delivery with 8AN ORB plumbing flexibility.

Pro Tip: Plan your fuel system routing before installation - the four 8AN ORB ports per rail give you flexibility for front-feed, rear-feed, or return-style configurations.

Complete Kit: Both rails included. 4x 8AN ORB ports per rail. Black anodized. Laser engraved. CNC billet aluminum. Mounting hardware included. Injectors sold separately.

Upgrade your VQ fuel system with Radium Engineering fuel rails - CNC billet, 8AN ORB ports, black anodized, complete kit for all VQ35 and VQ37 engines.