I've looked at a propane carburetor for a chevy small block engine to be used on a rock crawler so the engine wouldn't stall during inclines but I haven't seen any recommendation on what should be used for the fuel lines from the tank to the carb. Besides rubber hoses that can break if a vehicle roles what can be used to deliver propane gas to a propane carburetor?

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    What about steel braided hose? I'd think any kind of line could potentially break if it gets hit hard enough.
    – Ben
    Commented May 19, 2016 at 21:49

1 Answer 1


In Australia, our Automotive LPG hose standard is:

• AS/NZS 1869 class D

According to the following document, it appears that in the US propane hoses for automotive use needs to meet:

• NFPA 58, Liquefied Petroleum Gas Code, 11.6

• Referenced ASTM Piping and Tubing Standards


Edit: When searching for lines, make sure they meet these standards. You can get good steel braid rubber hoses all over the place.

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