EVIL ENERGY 8AN Flare to 8AN ORB Male Fuel Rail Adapter Fittings – Black 2PCS
Upgrade your performance fuel system with the EVIL ENERGY 8AN Flare to 8AN ORB Male Fuel Rail Adapter Fittings, a precision-machined two-piece adapter set designed to connect compatible -8AN fuel hoses to components equipped with female -8 ORB ports.
Manufactured from durable 6061-T6 aluminum alloy with a black finish, these fittings combine a 37-degree AN male flare connection with an O-ring boss (ORB) male connection, providing a secure transition between two common automotive fluid plumbing standards.
Whether you’re installing aftermarket fuel rails, upgrading a fuel pressure regulator, plumbing a high-flow fuel pump, or building a custom performance fuel system, these EVIL ENERGY 8AN adapters offer a compact solution for connecting compatible components.
Each package includes two black 8AN flare-to-ORB male adapters, making them ideal for custom fuel rail plumbing, engine swaps, and aftermarket fuel delivery installations.
Why Choose EVIL ENERGY 8AN to ORB Fuel Rail Adapters?
Performance fuel systems often combine AN flare hose connections with O-ring boss ports found on aftermarket fuel rails, regulators, and fuel system components.
Although both -8AN and -8 ORB connections use 3/4-16 UNF threads, their sealing methods are different. A conventional AN flare fitting cannot be substituted directly for an ORB fitting simply because the threads match.
The EVIL ENERGY adapter bridges these two connection types.
Key Features and Benefits
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8AN male flare to 8 ORB male: Connects a compatible female -8AN hose end to a female -8 ORB component port.
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Two fittings included: Convenient for fuel rail inlet and outlet connections where both ports use -8 ORB threads.
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6061-T6 aluminum construction: Lightweight, durable construction suitable for automotive performance plumbing.
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37-degree AN flare sealing: Provides a mechanical sealing surface for compatible female AN fittings.
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NBR O-ring seal: Designed to seal the ORB connection against the component’s properly machined O-ring seat.
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Black finish: Complements aftermarket fuel rails, regulators, and engine bay plumbing.
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1,500 PSI advertised working pressure: Designed for applications within the manufacturer’s stated limits.
$17.99
Connect 8AN Fuel Lines to Aftermarket Fuel Rails
Aftermarket fuel rails frequently use female ORB ports that require the correct adapter before an AN hose end can be installed.
These EVIL ENERGY fittings allow compatible -8AN fuel hose assemblies to connect to -8 ORB fuel rail ports without modifying the rail.
Common applications include custom fuel delivery systems for turbocharged, supercharged, and engine-swapped vehicles.
Ideal for Performance Fuel System Upgrades
The adapters can be used with compatible components such as:
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Aftermarket aluminum fuel rails
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High-flow fuel pressure regulators
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Performance fuel pump assemblies
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Custom fuel supply and return systems
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Compatible oil coolers and fluid plumbing
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LS engine swap fuel systems
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Turbocharged and supercharged engine builds
Before ordering, verify that the component has a female -8 ORB port, not merely a 3/4-16 threaded opening with a different sealing design.
8AN Flare vs. 8 ORB – What’s the Difference?
Both connection types use 3/4-16 UNF threads, but they seal differently.
| Feature | -8AN Flare | -8 ORB |
|---|---|---|
| Thread size | 3/4-16 UNF | 3/4-16 UNF |
| Sealing method | 37-degree flare | O-ring against port seat |
| Typical connection | Female AN hose end | Female ORB component port |
| Thread sealant required | No | No |
| Common application | Braided fuel hose | Fuel rail, regulator, pump ports |
The EVIL ENERGY adapter provides both sealing geometries in one fitting, allowing properly matched components to connect.
Important: Do not apply PTFE tape or pipe-thread sealant to AN flare or ORB threads. The sealing surfaces are the flare and O-ring, respectively.
6061-T6 Aluminum Construction with NBR O-Ring
The adapter body is manufactured from 6061-T6 aluminum alloy, offering a favorable combination of strength, low weight, and corrosion resistance.
The ORB connection uses an NBR (nitrile rubber) O-ring.
NBR is commonly used in automotive petroleum-based fluid systems, but compatibility varies with fuel composition, operating temperature, and exposure duration.
For E85 or high-ethanol applications, confirm the O-ring’s compatibility with the specific fuel and operating conditions. Where necessary, use a manufacturer-approved ethanol-compatible replacement seal.
The aluminum fitting body alone does not establish compatibility of the complete adapter assembly with E85.
EVIL ENERGY 8AN Flare to ORB Adapter Specifications
| Specification | Details |
|---|---|
| Brand | EVIL ENERGY |
| Product type | AN Flare to ORB Male Adapter |
| Quantity | 2 pieces |
| Color | Black |
| AN connection | -8AN male flare |
| ORB connection | -8 ORB male |
| Thread size | 3/4-16 UNF |
| AN sealing angle | 37 degrees |
| ORB sealing method | NBR O-ring |
| Body material | 6061-T6 aluminum alloy |
| Maximum advertised working pressure | 1,500 PSI |
| Advertised fitting temperature range | -65°F to 252°F |
| Advertised O-ring temperature range | -4°F to 392°F |
| Installation type | Universal custom fitment |
| Applications | Fuel rails, regulators, pumps, compatible cooler systems |
The quoted temperature specifications are manufacturer-supplied. The complete assembly’s safe operating range depends on the O-ring, fluid, and application; the O-ring’s advertised range should not be treated as a universal continuous-use rating.
What Vehicles Does the EVIL ENERGY 8AN ORB Adapter Fit?
These fittings are universal aftermarket plumbing components rather than direct-fit vehicle replacement parts.
They may be used on custom fuel systems across numerous performance platforms.
| Vehicle / Engine Platform | Potential Application |
|---|---|
| Chevrolet Camaro / Corvette LS | Aftermarket -8 ORB fuel rail connections |
| Ford Mustang 5.0L Coyote | High-flow fuel rail plumbing |
| Honda Civic / Acura Integra | Turbocharged fuel system upgrades |
| Nissan 240SX SR20DET / KA24 | Aftermarket fuel rail adapters |
| Toyota Supra 2JZ | Custom fuel delivery systems |
| Lexus IS300 2JZ-GE | Modified fuel rail plumbing |
| Mitsubishi Lancer Evolution | Performance fuel system installations |
| Subaru WRX / STI | Upgraded fuel rail and regulator connections |
Fitment note: The vehicle’s engine platform does not determine whether these fittings will fit. The installed fuel rail, regulator, or other component must have the correct female -8 ORB port and sufficient installation clearance.
How to Install an 8AN Flare to ORB Fuel Rail Adapter
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Relieve fuel system pressure and follow the vehicle manufacturer’s safety procedures.
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Identify the female -8 ORB port on the fuel rail or component.
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Inspect the port sealing surface and adapter O-ring for damage or contamination.
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Lightly lubricate the O-ring with a lubricant approved for the seal and fluid application.
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Thread the ORB adapter into the component by hand to avoid cross-threading.
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Tighten according to the component or adapter manufacturer’s specifications.
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Connect the compatible female -8AN hose end to the adapter’s 37-degree male flare.
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Prime and pressure-test the system, inspecting every connection for leaks before operating the engine.
Never force a flare fitting into an ORB port or substitute an AN flare connection for an O-ring sealing connection.
Are 8AN Fuel Lines Necessary for Your Build?
A -8AN fuel line is commonly selected for performance fuel systems requiring greater flow capacity than smaller AN hose sizes.
However, the correct fuel line diameter depends on engine power, fuel type, fuel pump capacity, system pressure, hose length, and pressure loss.
For E85 conversions, additional fuel flow requirements can make fuel system sizing particularly important.
Learn more about fuel delivery upgrades in our E85 Fuel Line Conversion Guide and How to Convert to E85 articles at My Pro Street Online.
Buy EVIL ENERGY 8AN Flare to ORB Male Fuel Rail Adapters at Pro Street Online
Complete your custom fuel rail installation with the EVIL ENERGY 8AN Flare to 8AN ORB Male Adapter Fitting 2-Pack in Black.
Featuring precision 37-degree AN flare connections, O-ring boss sealing, 6061-T6 aluminum construction, and a compact design, these adapters provide a practical solution for joining compatible -8AN fuel hoses to aftermarket ORB-equipped components.
Explore fuel system fittings, adapters, and performance upgrades at Pro Street Online
Specification: EVIL ENERGY 8AN Flare to 8AN ORB Male Fuel Rail Adapter Fittings – Black 2PCS
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