EVIL ENERGY 6AN PTFE Fuel Line Kit — 26ft E85-Compatible Braided Hose, 1500 PSI Rated

EVIL ENERGY 6AN PTFE Fuel Line Kit is a 26-foot, E85-compatible, 6AN (5/16" ID) braided PTFE fuel hose system built for high-temperature, high-pressure LS swap and EFI applications.

This kit supplies a continuous 26 ft (7.9 m) length of PTFE-lined, nylon-braided fuel hose sized for 6AN fittings, designed for performance engine bays that use ethanol blends like E85 or conventional gasoline. The hose combines a chemically inert PTFE inner liner with a tough outer braid to resist fuels, lubricants and coolants, and it’s rated for demanding temperature and pressure conditions common in EFI systems and conversions.

What are the exact dimensions and pressure limits of this hose?

The hose has a 6AN specification with a 5/16" (0.31") inner diameter and approximately 0.45" outer diameter, supplied as a single 26 ft (7.9 m) length. It’s engineered for high-pressure fuel systems but requires proper fittings and routing.

• Inner diameter: 5/16" (0.31 inch)
• Outer diameter: ~0.45 inch
• Length: 26 ft (7.9 m)
• Maximum working pressure: 1,500 PSI; burst pressure: 4,500 PSI

Is this hose compatible with E85 and other fuels?

The PTFE inner liner is chemically resistant and suitable for a wide range of automotive fuels, including E85, gasoline, diesel blends, and common lubricants and coolants. That chemical resistance makes it a durable choice for fuel systems that see ethanol or aggressive additives.

• PTFE liner resists ethanol and most fuel additives
• Suitable for gasoline, E85, diesel blends, and many lubricants
• Recommended for fuel rails, return lines, and EFI plumbing when paired with compatible fittings

How does the temperature range and installation guidance affect my build?

The hose tolerates a wide temperature span from -76°F to 446°F (-60°C to 230°C), making it suitable for engine compartments and other hot environments. Because the PTFE-lined hose is relatively stiff, it does not fold tightly and requires careful routing and professional-style installation to avoid kinks and ensure leak-free connections.

• Operating temperature: -76°F to 446°F (-60°C to 230°C)
• Stiff construction—do not fold or crease the hose
• Professional installation recommended for bending, clamping, and termination

What fittings and uses are typical for an LS swap or EFI project?

Use this 6AN hose for fuel rails, feed and return lines, surge tanks, and fuel pump plumbing where a high-pressure, fuel-resistant hose is required. Pair the hose with quality 6AN fittings, clamps or crimp-style ends compatible with PTFE-lined hose to maintain pressure ratings and leak-free operation.

• Common in LS swaps, EFI conversions, and aftermarket fuel systems
• Works with 6AN aftermarket fittings and adapters
• Ideal for high-temp, high-pressure feed and return applications

Who is this for: Builders and tuners upgrading fuel systems for performance vehicles, LS swap projects, or ethanol-capable EFI conversions who need a long run of chemically resistant, high-pressure PTFE-lined hose. It’s intended for mechanically proficient installers or shops; if you’re unsure about routing or fitting choices, seek professional installation to preserve pressure ratings and ensure safe operation.