dennisgreener

iTrader: (9)

Okay so I have these fuel rails I got from a guy in my state for my boosted 5.3 setup. The rails appear to be 1/2 inch inlet rails but when I pulled the fittings out of the ends because I have to change the size I can't figure out what size that screws into the rail. It is smaller than -8 but larger than -6. I looks to be an orb type fitting but he had everything put together with teflon tape.......anyways. I need -10 feed and -10 return per magnafuels advise so what do you think these fitting sizes are? Thanks in advance.

Old Geezer

iTrader: (3)

Orb fittings do not use tape. Are they possibly NPT threads?
A -10 AN is likely going to have 3/4" threads. [IF they are orb threads in the rails.]
If the rails are only .500 bore, then a -10 may be an issue.

Take some pics, and post them.

ss performance

iTrader: (17)

Don't let the fact that some used Teflon tape throw you. I have seen a lot of people use Teflon tape on fittings that don't require it. They simply don't understand what is doing the sealing.

I have even seen the guys on Horse Power TV do this.

dennisgreener

iTrader: (9)

I was just wondering what the common fuel rail uses for a fitting into it. I would post pictures but not sure how......