Looking to get some adapters to go from my hardlines to -6 an (currently ghetto rigged with clamps)

is the Hardline 3/8ths or 5/16ths?

Something like this correct?
http://www.summitracing.com/parts/EAR-165056ERL/
http://www.summitracing.com/parts/RUS-639200/

Thanks

 

I don't know the size but I can almost guaruntee its metric not sae.

 

The 5/16" ID fuel line fits on the hard lines correctly.

 

+1

it's 5/16

 

Getting this thread going again due to misinformation; this is actually not the case. As mentioned above the line is measured in metric, so a "5/16" is actually 8mm. This does make a difference for AN hardline fittings as the ones I got for my first gen would fit 5/16 no problem but not 8mm as it's slightly larger.