EVIL ENERGY AN-6 PTFE Nylon Braided Fuel Line Kit — 25 ft E85-Compatible Hose, High-Temp High-Pressure

EVIL ENERGY’s AN-6 PTFE nylon braided fuel line kit is a 25-foot, E85-compatible, high-pressure hose assembly built for EFI LS swaps and other demanding automotive fuel and fluid routing tasks.

This kit brings PTFE core durability with a protective nylon braid and AN-6 fittings to applications that need chemical compatibility, high temperature tolerance, and reliable pressure handling. It’s tailored for engine swaps, EFI conversions, turbo oil/boost lines, transmission cooler feeds, and similar uses where standard rubber hose can fail. The assembly resists a wide range of fuels and lubricants and is rated for extreme conditions commonly found under the hood.

What makes this hose suitable for LS swap and EFI conversion projects?

The kit’s PTFE inner liner resists fuel breakdown and chemical attack while the nylon braid adds abrasion resistance and improved crush strength. AN-6 sizing fits common EFI ports and fittings used on LS engines, and the 25-foot length covers longer runs during swaps.

• PTFE core resists E85, gasoline, diesel, and many lubricants.
• Nylon braid for abrasion protection and routing durability.
• AN-6 (6AN) ID 5/16" (0.31") and OD 0.45" for EFI fittings.
• 25 ft length included to accommodate varied installation runs.

How does it hold up to heat and pressure under the hood?

The hose is engineered for elevated temperatures and high pressure, with a wide working range and substantial burst margin. That makes it a better choice than many rubber hoses when exposed to turbo heat or aggressive fuel blends.

• Working temperature: -76°F to 446°F (-60°C to 230°C).
• Rated working pressure: 1,500 PSI; burst pressure: 4,500 PSI.
• Construction reduces swelling and degradation from hot fuel exposure.

Which fluids and fuels is the PTFE line compatible with?

PTFE is highly chemically inert, so this line works with most automotive fuels and fluids encountered in performance builds. It’s suitable for fuel injection use and many oil, coolant, and vapor applications where chemical resistance is required.

• Compatible with gasoline, E85, diesel, and oxygenated fuels.
• Accepts engine oil, transmission fluid, and many lubricants.
• Also suitable for vacuum, fuel return, and turbocharger oil feed lines.

Are there any installation cautions I should know?

The hose is relatively rigid compared with soft rubber lines and should not be sharply bent, folded, or kinked. Proper routing, secure fittings, and professional installation are recommended to ensure leak-free performance.

• Do not fold or crease the hose; avoid tight radii that exceed the hose’s bend tolerance.
• Use proper AN-6 fittings and torque practices to prevent leaks.
• Inspect routing to avoid contact with hot exhaust or sharp edges.

Who this is for: performance enthusiasts, engine builders, and professional installers performing LS engine swaps, EFI conversions, turbo installations, or upgrading factory fuel lines. If you need a chemically resistant, high-temperature, high-pressure PTFE fuel hose that accepts AN-6 fittings and covers longer routing runs, this EVIL ENERGY 25ft kit is designed for those applications. Note: measure your required hose diameter and routing before purchase, and consider professional installation for critical fuel system work.