AN6 / AN8 fuel line question....

[jamiep_jamiep]

Well my old engineering tutor used to tell me the only stupid question was the one you didn't ask... so here goes -

I have some used fuel fittings on a holley that I need to link into my existing fuel system - how can I tell what size they are here so I can buy additional fittings? Anyone give me a clue?

Thanks.

[Hotrodvw]

Use this chart.  JIC is interchangeable with AN parts.

http://fittingsandadapters.com/saej537flarj.html

Follow the thread ID and OD measurements.   

[Russell]

a 19mm spanner is required for -6 fittings for the center part

[SteveW]

a 19mm spanner is required for -6 fittings for the center part

It depends what brand you buy and what degree fitting! There normally imperial size too! Took me a while to figure it all out 

[jamiep_jamiep]

Thanks guys! And thanks martin for the pm.