Return line hose size?

[fussfeld]

Would anyone happen to know the return line hose size that comes off the mechanical fuel pump?


NOT the actual metal return line that runs all the way back to the tank, but the rubber hose(that runs from the mechanical pump) that CONNECTS to the metal return line back to tank.

i'm trying to connect the fuel pressure regulator's return output to the existing metal return line.

Thanks.

 

[Frankenchevy]

5/16”, almost positive. I believe the supply is 3/8”, return is 5/16” and vent is 1/4”.

Knock the cob webs off that micrometer, lol!

 

[PrairieDrifter]

^^It is 5/16 and the rest are right as well^^

 

[fussfeld]

Thanks alot.