AN Hose 101

This is where you can find everything you need to know about Hot Rod AN LLC PTFE lined braided AN hose and PTFE AN Fittings. From How to's, FAQ's, quick notes, education and more on all things related to AN Plumbing.
AN fittings and AN hose sizes and what they mean for your ride
AN fittings and AN hose sizes and what they mean for your ride
AN hose and fittings come in weird sizes like AN6, 8AN, 10 AN, AN Dash 12 Ect. How does this come into play when you are planning your automotive fuel... Read more...
What do I need for fuel line to do an LS engine swap?
What do I need for fuel line to do an LS engine swap?
What do I need to complete a fuel system for an LS engine swap into my ....? Welcome to Hot Rod AN LLC, one of the most common uses for... Read more...
EFI swaps and PTFE hose, Holley Sniper, ACES EFI, and FiTech
EFI swaps and PTFE hose, Holley Sniper, ACES EFI, and FiTech
What you need for a successful EFI conversion - ACES EFI, FiTech and Holley Sniper. With EFI conversions becoming ever more popular, a common question comes up around what you... Read more...
Fuel pump selection for LS based engines and EFI conversions
Fuel pump selection for LS based engines and EFI conversions
Choosing the right fuel pump for your LS engine install or EFI conversion. One of the most common requests that we have come in is what electric fuel pump should... Read more...
How to choose the right fuel pressure regulator
How to choose the right fuel pressure regulator
How to choose the right fuel pressure regulator. With so many regulator options on the market how do you know which one is the right fuel pressure regulator for your... Read more...
Using AN PTFE hose for Transmission Cooler Lines
Using AN PTFE hose for Transmission Cooler Lines
Using Hot Rod AN PTFE Hose and Fittings for Transmission cooler lines Can you use AN PTFE hose for transmission cooler lines? A simple answer to this question is absolutely.... Read more...
What do I do with the vent port on my sending unit?
What do I do with the vent port on my sending unit?
What to do with the vent port on a fuel sending unit. We get asked very often what the purpose and what to do with that 3rd vent port on... Read more...
How to identify if your LS engine is a return or return less fuel system
How to identify if your LS engine is a return or return less fuel system
How to identify if your LS engine is a return or return less style fuel system.  We often get asked what type of AN fuel line kit is needed for... Read more...
Ultimate OBS 1988-1998 Chevy & GM LS fuel system Swap Guide
Ultimate OBS 1988-1998 Chevy & GM LS fuel system Swap Guide
The definitive OBS (GMT400) LS swap fuel system blueprint: correct M14/M16 sender adapters, AN-6 PTFE hose lengths, in-tank/inline pump choices, and clear returnless/return-style routing—built for DIYers to deliver 58 PSI,... Read more...
Ultimate fuel system guide for 73-87 C10 & K10 Squarebody trucks - LS Swaps and EFI conversions
Ultimate fuel system guide for 73-87 C10 & K10 Squarebody trucks - LS Swaps and EFI conversions
A step-by-step fuel-system blueprint for 1973–87 Chevy/GMC Squarebody (C10, K10, Blazer): tanks & sending units, pump choices, AN PTFE hose sizing/routing, filters & regulators (return vs. returnless), plus dual-tank plumbing,... Read more...