Choosing the right E85 fuel line kit is essential for reliability and performance in modern engines. This guide highlights top PTFE fuel hose kits designed for E85 compatibility, high heat resistance, and strong pressure capabilities. Each product section includes a direct link to Amazon, a visual reference, and key specs to help you compare options quickly. The buying guide at the end covers installation considerations, compatibility factors, and how to choose the right size for your setup.
| Product | Length | Size (ID) | Finding |
|---|---|---|---|
| EVIL ENERGY 8AN PTFE Fuel Line Kit | 20 ft | 13/32″ (0.39″) | High-temp PTFE, E85 compatible |
| EVIL ENERGY 6AN PTFE Fuel Line Kit (20 ft) | 20 ft | 5/16″ (0.31″) | Standard LS/EFI uses |
| EVIL ENERGY 6AN PTFE Fuel Line Kit (26 ft LS Swap) | 26 ft | 5/16″ (0.31″) | LS swap / EFI applications |
| EVIL ENERGY 6AN PTFE Fuel Line Kit (20 ft LS Swap) | 20 ft | 5/16″ (0.31″) | LS/EFI setups |
| EVIL ENERGY 6AN 3/8″ PTFE LS Swap Kit | 25 ft | 3/8″ (0.375″) | Higher flow LS EFI builds |
EVIL ENERGY 8AN PTFE Fuel Line Kit (20FT)

Size: PTFE 8AN hose with ID 13/32″ (0.39″), OD 0.55″. Length: 20 ft. Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI. Applicable Medium: suitable for automotive fuels, lubricants, and coolants. This kit is designed for high-performance EFI and fuel-injection systems, supporting robust pressure demands and excellent heat resistance for E85-compatible fuels.
EVIL ENERGY 6AN PTFE Fuel Line Kit (20 ft)

Size: PTFE 6AN hose with ID 5/16″ (0.31″), OD 0.45″. Length: 20 ft. Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI. Applicable Medium: suitable for all automotive fuels, lubricants, and coolants. Ideal for EFI and LS swap projects requiring reliable 6AN performance with E85 compatibility.
EVIL ENERGY 6AN PTFE Fuel Line Kit (26 ft LS Swap)

Size: PTFE 6AN hose with ID 5/16″ (0.31″), OD 0.45″. Length: 26 ft. Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI. Applicable Medium: designed for all automotive fuels, lubricants, and coolants. Suited for EFI LS swap and turbo setups requiring extended hose runs with dependable E85 compatibility.
EVIL ENERGY 6AN PTFE Fuel Line Kit (20 ft LS Swap)

Size: PTFE 6AN hose with ID 5/16″ (0.31″), OD 0.45″. Length: 20 ft. Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI. Applicable Medium: suitable for all automotive fuels, lubricants, and coolants. This configuration supports moderate-length runs in EFI LS swap installations that demand trustworthy E85 compatibility and high-pressure tolerance.
EVIL ENERGY 6AN 3/8″ PTFE LS Swap Kit

Size: PTFE 6AN hose with ID 3/8″ (0.375″), OD 0.43″. Length: 25 ft. Working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum working pressure: 1,500 PSI. Bursting pressure: 4,500 PSI. Applicable Medium: compatible with all automotive fuels, lubricants, and coolants. This kit provides a higher ID for increased flow in high-performance LS EFI builds and other high-demand E85 applications.
Buying Guide
- Hose size and compatibility: E85 fuel requires ethanol-compatible hoses with PTFE lining. Common IDs are 5/16″ and 13/32″ for 6AN and 8AN lines. Choose IDs based on required flow and your fuel system pressure.
- Temperature and pressure ratings: Look for hoses rated to at least -76℉ to 446℉ and working pressures around 1,500 PSI. Higher bursting pressures offer additional safety margins for high-performance setups.
- Length and routing: Measure the distance between the fuel pump, rail, and regulator, including bends. Longer runs require precise bends to avoid kinks and ensure reliability.
- Lubricants and fuels: Ensure the kit specifies compatibility with all automotive fuels, lubricants, and coolants, including E85 and other ethanol blends.
- LS swap and EFI considerations: For LS swaps or EFI installations, LS-specific 6AN lines and longer runs (20–26 ft) are common to accommodate routing constraints.
- Installation components: Some kits include fittings, clamps, and wrenches. Verify that the kit provides the necessary fittings for your vehicle and that you have compatible mounting hardware.
- Brand reliability: EVIL ENERGY products listed here emphasize PTFE lining, high-pressure tolerance, and ethanol compatibility, making them a practical option for performance builds.
- Safety and maintenance: Regular inspection for wear, abrasion, or leaks is recommended, especially in high-pressure EFI systems and under-hood environments with heat exposure.
- Warranty and documentation: Review product documentation for installation guidelines, temperature ratings, and warranty terms.